Finding the Fourth Proportional to 59,181.88, 81,557.94 and 42,385.72

Step by Step Solution

1. Step 1: Write the proportion equation
   59,181.88 : 81,557.94 = 42,385.72 : x
2. Step 2: Convert to fraction form
   59,181.88/81,557.94 = 42,385.72/x
3. Step 3: Cross multiply
   59,181.88x = 81,557.94 × 42,385.72
4. Step 4: Simplify right side
   59,181.88x = 3,456,892,008.62
5. Step 5: Solve for x
   x = 3,456,892,008.62/59,181.88
6. Step 6: Final answer
   x = 58,411.32