Finding the Fourth Proportional to 59,128.56, 88,644.94 and 40,361.34

Step by Step Solution

1. Step 1: Write the proportion equation
   59,128.56 : 88,644.94 = 40,361.34 : x
2. Step 2: Convert to fraction form
   59,128.56/88,644.94 = 40,361.34/x
3. Step 3: Cross multiply
   59,128.56x = 88,644.94 × 40,361.34
4. Step 4: Simplify right side
   59,128.56x = 3,577,828,562.62
5. Step 5: Solve for x
   x = 3,577,828,562.62/59,128.56
6. Step 6: Final answer
   x = 60,509.31