Finding the Fourth Proportional to 88,499.92, 132,683.04 and 53,431.20

Step by Step Solution

1. Step 1: Write the proportion equation
   88,499.92 : 132,683.04 = 53,431.20 : x
2. Step 2: Convert to fraction form
   88,499.92/132,683.04 = 53,431.20/x
3. Step 3: Cross multiply
   88,499.92x = 132,683.04 × 53,431.20
4. Step 4: Simplify right side
   88,499.92x = 7,089,414,046.85
5. Step 5: Solve for x
   x = 7,089,414,046.85/88,499.92
6. Step 6: Final answer
   x = 80,106.45