Finding the Fourth Proportional to 59,861.18, 82,661.83 and 57,025.37

Step by Step Solution

1. Step 1: Write the proportion equation
   59,861.18 : 82,661.83 = 57,025.37 : x
2. Step 2: Convert to fraction form
   59,861.18/82,661.83 = 57,025.37/x
3. Step 3: Cross multiply
   59,861.18x = 82,661.83 × 57,025.37
4. Step 4: Simplify right side
   59,861.18x = 4,713,821,440.63
5. Step 5: Solve for x
   x = 4,713,821,440.63/59,861.18
6. Step 6: Final answer
   x = 78,745.88