Finding the Fourth Proportional to 59,285.82, 88,506.12 and 57,209.39

Step by Step Solution

1. Step 1: Write the proportion equation
   59,285.82 : 88,506.12 = 57,209.39 : x
2. Step 2: Convert to fraction form
   59,285.82/88,506.12 = 57,209.39/x
3. Step 3: Cross multiply
   59,285.82x = 88,506.12 × 57,209.39
4. Step 4: Simplify right side
   59,285.82x = 5,063,380,693.94
5. Step 5: Solve for x
   x = 5,063,380,693.94/59,285.82
6. Step 6: Final answer
   x = 85,406.27