Finding the Fourth Proportional to 113,624.86, 156,793.04 and 65,881.28

Step by Step Solution

1. Step 1: Write the proportion equation
   113,624.86 : 156,793.04 = 65,881.28 : x
2. Step 2: Convert to fraction form
   113,624.86/156,793.04 = 65,881.28/x
3. Step 3: Cross multiply
   113,624.86x = 156,793.04 × 65,881.28
4. Step 4: Simplify right side
   113,624.86x = 10,329,726,170.29
5. Step 5: Solve for x
   x = 10,329,726,170.29/113,624.86
6. Step 6: Final answer
   x = 90,910.79