Finding the Fourth Proportional to 99,311.22, 137,033.61 and 65,333.43

Step by Step Solution

1. Step 1: Write the proportion equation
   99,311.22 : 137,033.61 = 65,333.43 : x
2. Step 2: Convert to fraction form
   99,311.22/137,033.61 = 65,333.43/x
3. Step 3: Cross multiply
   99,311.22x = 137,033.61 × 65,333.43
4. Step 4: Simplify right side
   99,311.22x = 8,952,875,766.58
5. Step 5: Solve for x
   x = 8,952,875,766.58/99,311.22
6. Step 6: Final answer
   x = 90,149.69