Finding the Fourth Proportional to 11,459.43, 15,797.12 and 8,938.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,459.43 : 15,797.12 = 8,938.71 : x
2. Step 2: Convert to fraction form
   11,459.43/15,797.12 = 8,938.71/x
3. Step 3: Cross multiply
   11,459.43x = 15,797.12 × 8,938.71
4. Step 4: Simplify right side
   11,459.43x = 141,205,829.82
5. Step 5: Solve for x
   x = 141,205,829.82/11,459.43
6. Step 6: Final answer
   x = 12,322.24