Finding the Fourth Proportional to 107,626.60, 148,443.78 and 65,132.20

Step by Step Solution

1. Step 1: Write the proportion equation
   107,626.60 : 148,443.78 = 65,132.20 : x
2. Step 2: Convert to fraction form
   107,626.60/148,443.78 = 65,132.20/x
3. Step 3: Cross multiply
   107,626.60x = 148,443.78 × 65,132.20
4. Step 4: Simplify right side
   107,626.60x = 9,668,469,967.72
5. Step 5: Solve for x
   x = 9,668,469,967.72/107,626.60
6. Step 6: Final answer
   x = 89,833.46