Finding the Fourth Proportional to 120,200.28, 165,879.69 and 65,755.74

Step by Step Solution

1. Step 1: Write the proportion equation
   120,200.28 : 165,879.69 = 65,755.74 : x
2. Step 2: Convert to fraction form
   120,200.28/165,879.69 = 65,755.74/x
3. Step 3: Cross multiply
   120,200.28x = 165,879.69 × 65,755.74
4. Step 4: Simplify right side
   120,200.28x = 10,907,541,766.92
5. Step 5: Solve for x
   x = 10,907,541,766.92/120,200.28
6. Step 6: Final answer
   x = 90,744.73