Finding the Fourth Proportional to 10,910.96, 16,332.72 and 7,158.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,910.96 : 16,332.72 = 7,158.43 : x
2. Step 2: Convert to fraction form
   10,910.96/16,332.72 = 7,158.43/x
3. Step 3: Cross multiply
   10,910.96x = 16,332.72 × 7,158.43
4. Step 4: Simplify right side
   10,910.96x = 116,916,632.83
5. Step 5: Solve for x
   x = 116,916,632.83/10,910.96
6. Step 6: Final answer
   x = 10,715.52