Finding the Fourth Proportional to 99,753.89, 137,641.55 and 59,471.42

Step by Step Solution

1. Step 1: Write the proportion equation
   99,753.89 : 137,641.55 = 59,471.42 : x
2. Step 2: Convert to fraction form
   99,753.89/137,641.55 = 59,471.42/x
3. Step 3: Cross multiply
   99,753.89x = 137,641.55 × 59,471.42
4. Step 4: Simplify right side
   99,753.89x = 8,185,737,443.94
5. Step 5: Solve for x
   x = 8,185,737,443.94/99,753.89
6. Step 6: Final answer
   x = 82,059.33