Finding the Fourth Proportional to 137,321.22, 189,470.61 and 83,605.62

Step by Step Solution

1. Step 1: Write the proportion equation
   137,321.22 : 189,470.61 = 83,605.62 : x
2. Step 2: Convert to fraction form
   137,321.22/189,470.61 = 83,605.62/x
3. Step 3: Cross multiply
   137,321.22x = 189,470.61 × 83,605.62
4. Step 4: Simplify right side
   137,321.22x = 15,840,807,820.83
5. Step 5: Solve for x
   x = 15,840,807,820.83/137,321.22
6. Step 6: Final answer
   x = 115,355.86