Finding the Fourth Proportional to 88,498.56, 132,435.90 and 55,234.20

Step by Step Solution

1. Step 1: Write the proportion equation
   88,498.56 : 132,435.90 = 55,234.20 : x
2. Step 2: Convert to fraction form
   88,498.56/132,435.90 = 55,234.20/x
3. Step 3: Cross multiply
   88,498.56x = 132,435.90 × 55,234.20
4. Step 4: Simplify right side
   88,498.56x = 7,314,990,987.78
5. Step 5: Solve for x
   x = 7,314,990,987.78/88,498.56
6. Step 6: Final answer
   x = 82,656.61