Finding the Fourth Proportional to 83,665.50, 115,459.20 and 45,940.56

Step by Step Solution

1. Step 1: Write the proportion equation
   83,665.50 : 115,459.20 = 45,940.56 : x
2. Step 2: Convert to fraction form
   83,665.50/115,459.20 = 45,940.56/x
3. Step 3: Cross multiply
   83,665.50x = 115,459.20 × 45,940.56
4. Step 4: Simplify right side
   83,665.50x = 5,304,260,305.15
5. Step 5: Solve for x
   x = 5,304,260,305.15/83,665.50
6. Step 6: Final answer
   x = 63,398.42