Finding the Fourth Proportional to 59,440.56, 88,629.42 and 57,807.60

Step by Step Solution

1. Step 1: Write the proportion equation
   59,440.56 : 88,629.42 = 57,807.60 : x
2. Step 2: Convert to fraction form
   59,440.56/88,629.42 = 57,807.60/x
3. Step 3: Cross multiply
   59,440.56x = 88,629.42 × 57,807.60
4. Step 4: Simplify right side
   59,440.56x = 5,123,454,059.59
5. Step 5: Solve for x
   x = 5,123,454,059.59/59,440.56
6. Step 6: Final answer
   x = 86,194.58