Finding the Fourth Proportional to 72,115.18, 108,025.89 and 58,835.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,115.18 : 108,025.89 = 58,835.50 : x
2. Step 2: Convert to fraction form
   72,115.18/108,025.89 = 58,835.50/x
3. Step 3: Cross multiply
   72,115.18x = 108,025.89 × 58,835.50
4. Step 4: Simplify right side
   72,115.18x = 6,355,757,251.10
5. Step 5: Solve for x
   x = 6,355,757,251.10/72,115.18
6. Step 6: Final answer
   x = 88,133.42