Finding the Fourth Proportional to 64,480.17, 88,959.83 and 42,137.13

Step by Step Solution

1. Step 1: Write the proportion equation
   64,480.17 : 88,959.83 = 42,137.13 : x
2. Step 2: Convert to fraction form
   64,480.17/88,959.83 = 42,137.13/x
3. Step 3: Cross multiply
   64,480.17x = 88,959.83 × 42,137.13
4. Step 4: Simplify right side
   64,480.17x = 3,748,511,710.80
5. Step 5: Solve for x
   x = 3,748,511,710.80/64,480.17
6. Step 6: Final answer
   x = 58,134.33