Finding the Fourth Proportional to 83,389.59, 115,077.81 and 45,149.55

Step by Step Solution

1. Step 1: Write the proportion equation
   83,389.59 : 115,077.81 = 45,149.55 : x
2. Step 2: Convert to fraction form
   83,389.59/115,077.81 = 45,149.55/x
3. Step 3: Cross multiply
   83,389.59x = 115,077.81 × 45,149.55
4. Step 4: Simplify right side
   83,389.59x = 5,195,711,336.49
5. Step 5: Solve for x
   x = 5,195,711,336.49/83,389.59
6. Step 6: Final answer
   x = 62,306.47