Finding the Fourth Proportional to 99,362.30, 137,079.52 and 56,332.71

Step by Step Solution

1. Step 1: Write the proportion equation
   99,362.30 : 137,079.52 = 56,332.71 : x
2. Step 2: Convert to fraction form
   99,362.30/137,079.52 = 56,332.71/x
3. Step 3: Cross multiply
   99,362.30x = 137,079.52 × 56,332.71
4. Step 4: Simplify right side
   99,362.30x = 7,722,060,706.27
5. Step 5: Solve for x
   x = 7,722,060,706.27/99,362.30
6. Step 6: Final answer
   x = 77,716.21