Finding the Fourth Proportional to 59,280.95, 88,498.85 and 57,204.51

Step by Step Solution

1. Step 1: Write the proportion equation
   59,280.95 : 88,498.85 = 57,204.51 : x
2. Step 2: Convert to fraction form
   59,280.95/88,498.85 = 57,204.51/x
3. Step 3: Cross multiply
   59,280.95x = 88,498.85 × 57,204.51
4. Step 4: Simplify right side
   59,280.95x = 5,062,533,063.79
5. Step 5: Solve for x
   x = 5,062,533,063.79/59,280.95
6. Step 6: Final answer
   x = 85,398.99