Finding the Fourth Proportional to 59,568.16, 88,699.34 and 57,439.48

Step by Step Solution

1. Step 1: Write the proportion equation
   59,568.16 : 88,699.34 = 57,439.48 : x
2. Step 2: Convert to fraction form
   59,568.16/88,699.34 = 57,439.48/x
3. Step 3: Cross multiply
   59,568.16x = 88,699.34 × 57,439.48
4. Step 4: Simplify right side
   59,568.16x = 5,094,843,965.94
5. Step 5: Solve for x
   x = 5,094,843,965.94/59,568.16
6. Step 6: Final answer
   x = 85,529.65