Finding the Fourth Proportional to 268,583.37, 402,789.50 and 88,635.31

Step by Step Solution

1. Step 1: Write the proportion equation
   268,583.37 : 402,789.50 = 88,635.31 : x
2. Step 2: Convert to fraction form
   268,583.37/402,789.50 = 88,635.31/x
3. Step 3: Cross multiply
   268,583.37x = 402,789.50 × 88,635.31
4. Step 4: Simplify right side
   268,583.37x = 35,701,370,747.09
5. Step 5: Solve for x
   x = 35,701,370,747.09/268,583.37
6. Step 6: Final answer
   x = 132,924.73