Finding the Fourth Proportional to 88,499.56, 132,437.38 and 55,235.20

Step by Step Solution

1. Step 1: Write the proportion equation
   88,499.56 : 132,437.38 = 55,235.20 : x
2. Step 2: Convert to fraction form
   88,499.56/132,437.38 = 55,235.20/x
3. Step 3: Cross multiply
   88,499.56x = 132,437.38 × 55,235.20
4. Step 4: Simplify right side
   88,499.56x = 7,315,205,171.78
5. Step 5: Solve for x
   x = 7,315,205,171.78/88,499.56
6. Step 6: Final answer
   x = 82,658.10