Finding the Fourth Proportional to 88,216.10, 132,304.71 and 56,531.06

Step by Step Solution

1. Step 1: Write the proportion equation
   88,216.10 : 132,304.71 = 56,531.06 : x
2. Step 2: Convert to fraction form
   88,216.10/132,304.71 = 56,531.06/x
3. Step 3: Cross multiply
   88,216.10x = 132,304.71 × 56,531.06
4. Step 4: Simplify right side
   88,216.10x = 7,479,325,499.29
5. Step 5: Solve for x
   x = 7,479,325,499.29/88,216.10
6. Step 6: Final answer
   x = 84,784.13