Finding the Fourth Proportional to 9,136.02, 12,606.98 and 5,157.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,136.02 : 12,606.98 = 5,157.52 : x
2. Step 2: Convert to fraction form
   9,136.02/12,606.98 = 5,157.52/x
3. Step 3: Cross multiply
   9,136.02x = 12,606.98 × 5,157.52
4. Step 4: Simplify right side
   9,136.02x = 65,020,751.49
5. Step 5: Solve for x
   x = 65,020,751.49/9,136.02
6. Step 6: Final answer
   x = 7,116.97