After eating a hearty meal they went to see the Buckingham palace. There, Rachel learned that 92 visitors came to the Buckingham palace that day. If there were 419 visitors the previous day and 103 visitors the day before that how many visited the Buckingham palace before that day?
First, we need to find the total number of visitors who came to the Buckingham palace in the three days. 92 + 419 + 103 is the same as 614. 

Now, we need to find the number of visitors who came to the Buckingham palace before that day. 614 - 92 - 419 is the same as 103. 

Therefore, the answer (numeric) is: 

103