Finding the Fourth Proportional to 99,402.86, 137,123.69 and 59,087.95

Step by Step Solution

1. Step 1: Write the proportion equation
   99,402.86 : 137,123.69 = 59,087.95 : x
2. Step 2: Convert to fraction form
   99,402.86/137,123.69 = 59,087.95/x
3. Step 3: Cross multiply
   99,402.86x = 137,123.69 × 59,087.95
4. Step 4: Simplify right side
   99,402.86x = 8,102,357,100.29
5. Step 5: Solve for x
   x = 8,102,357,100.29/99,402.86
6. Step 6: Final answer
   x = 81,510.30