Finding the Fourth Proportional to 64,139.46, 88,454.77 and 41,454.60

Step by Step Solution

1. Step 1: Write the proportion equation
   64,139.46 : 88,454.77 = 41,454.60 : x
2. Step 2: Convert to fraction form
   64,139.46/88,454.77 = 41,454.60/x
3. Step 3: Cross multiply
   64,139.46x = 88,454.77 × 41,454.60
4. Step 4: Simplify right side
   64,139.46x = 3,666,856,673.10
5. Step 5: Solve for x
   x = 3,666,856,673.10/64,139.46
6. Step 6: Final answer
   x = 57,170.06