Finding the Fourth Proportional to 88,620.81, 132,993.54 and 80,150.91

Step by Step Solution

1. Step 1: Write the proportion equation
   88,620.81 : 132,993.54 = 80,150.91 : x
2. Step 2: Convert to fraction form
   88,620.81/132,993.54 = 80,150.91/x
3. Step 3: Cross multiply
   88,620.81x = 132,993.54 × 80,150.91
4. Step 4: Simplify right side
   88,620.81x = 10,659,553,255.12
5. Step 5: Solve for x
   x = 10,659,553,255.12/88,620.81
6. Step 6: Final answer
   x = 120,282.73