I need to create a multilevel Approval Workflow for following scenario:

1. Workflow starts once item is created employee (Say in a ProductList) for certain Amount.
2. Manager Approves the workflow.
3. If Amount is < $5000, email goes to Employee as approved.
4. If Amount is > $5000, further approval is required. Item goes for further approval to VP and then CEO.

I am getting many examples on workflow, most of the examples are sending just an email based on condition. I need sending for further approval based on condition.