Finding the Fourth Proportional to 64,127.97, 88,521.30 and 57,401.73

Step by Step Solution

1. Step 1: Write the proportion equation
   64,127.97 : 88,521.30 = 57,401.73 : x
2. Step 2: Convert to fraction form
   64,127.97/88,521.30 = 57,401.73/x
3. Step 3: Cross multiply
   64,127.97x = 88,521.30 × 57,401.73
4. Step 4: Simplify right side
   64,127.97x = 5,081,275,761.85
5. Step 5: Solve for x
   x = 5,081,275,761.85/64,127.97
6. Step 6: Final answer
   x = 79,236.50