Finding the Fourth Proportional to 59,128.64, 88,645.87 and 34,140.34

Step by Step Solution

1. Step 1: Write the proportion equation
   59,128.64 : 88,645.87 = 34,140.34 : x
2. Step 2: Convert to fraction form
   59,128.64/88,645.87 = 34,140.34/x
3. Step 3: Cross multiply
   59,128.64x = 88,645.87 × 34,140.34
4. Step 4: Simplify right side
   59,128.64x = 3,026,400,141.40
5. Step 5: Solve for x
   x = 3,026,400,141.40/59,128.64
6. Step 6: Final answer
   x = 51,183.32