How can I get an amount between 5000 and 10000 approved?

Let's say I want to setup an approval process with 3 different conditions 

1. for amounts under 5000 ; 1 level of approval
2. for amounts between 5000 and 10000; 2 levels of approval
3. for amounts greater than 10000; 3 levels of approval

Step 1

Default reviewer : Stop Process at this Step => for amounts under 5000 

Reviewer A : Condition inside Step 1 = Amounts >5000  => for all amounts over 5000

Step 2

Default reviewer : Stop Process at this Step => for amounts between 5000 and 10000 

Reviewer B : Condition inside Step 2 = Amounts > 10000 => for all amounts over 10000

Default Reviewer will therefore approve all requests between 5000 and 10000. Request will move onto Reviewer B for approval if amount is > 10000

Step 3

Default Reviewer = Reviewer C => for all amounts over 10000