transaction that was included in a block without my permission After requesting for bitcoin it automatically sent to my blockchain wallet after that it was then sent out without my permission again to another address and it never arrived in my final balance but yet my total received transaction keeps increasing am so confuse about were the money went to .please help me understand
Note that there is a difference between a wallet and an address. Namely, a wallet may control the keys for many addresses. 

Checking the address you posted, it clearly has no bitcoins in it, as they have been transferred out to two different addresses:

15748uoft3CUiwvAqzPrLNxNxKNRpKpjt6

1EnD6fRsuajQm6B2KkYENE86nEvoinTjU8

If your wallet controls these addresses then you have nothing to worry about.

If not, then I’m sorry to say it appears your BTC was stolen. You’ll want to never use that wallet again, and it may be with spending some time trying to uncover how your wallet was hacked. Did you share login or wallet backup/seed info with anyone? Did you back it up to a potentially compromised email or Dropbox account? Etc 

Your chance of recovering those coins is likely very slim, so at least you can try to learn from a past mistake.