Finding the Fourth Proportional to 60,265.72, 82,991.32 and 56,414.85

Step by Step Solution

1. Step 1: Write the proportion equation
   60,265.72 : 82,991.32 = 56,414.85 : x
2. Step 2: Convert to fraction form
   60,265.72/82,991.32 = 56,414.85/x
3. Step 3: Cross multiply
   60,265.72x = 82,991.32 × 56,414.85
4. Step 4: Simplify right side
   60,265.72x = 4,681,942,587.03
5. Step 5: Solve for x
   x = 4,681,942,587.03/60,265.72
6. Step 6: Final answer
   x = 77,688.32