Finding the Fourth Proportional to 256,557.48, 384,841.98 and 88,076.52

Step by Step Solution

1. Step 1: Write the proportion equation
   256,557.48 : 384,841.98 = 88,076.52 : x
2. Step 2: Convert to fraction form
   256,557.48/384,841.98 = 88,076.52/x
3. Step 3: Cross multiply
   256,557.48x = 384,841.98 × 88,076.52
4. Step 4: Simplify right side
   256,557.48x = 33,895,542,348.31
5. Step 5: Solve for x
   x = 33,895,542,348.31/256,557.48
6. Step 6: Final answer
   x = 132,116.76