Finding the Fourth Proportional to 12,700.92, 17,527.32 and 7,399.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,700.92 : 17,527.32 = 7,399.38 : x
2. Step 2: Convert to fraction form
   12,700.92/17,527.32 = 7,399.38/x
3. Step 3: Cross multiply
   12,700.92x = 17,527.32 × 7,399.38
4. Step 4: Simplify right side
   12,700.92x = 129,691,301.06
5. Step 5: Solve for x
   x = 129,691,301.06/12,700.92
6. Step 6: Final answer
   x = 10,211.17