Finding the Fourth Proportional to 83,389.50, 115,077.56 and 45,149.38

Step by Step Solution

1. Step 1: Write the proportion equation
   83,389.50 : 115,077.56 = 45,149.38 : x
2. Step 2: Convert to fraction form
   83,389.50/115,077.56 = 45,149.38/x
3. Step 3: Cross multiply
   83,389.50x = 115,077.56 × 45,149.38
4. Step 4: Simplify right side
   83,389.50x = 5,195,680,485.91
5. Step 5: Solve for x
   x = 5,195,680,485.91/83,389.50
6. Step 6: Final answer
   x = 62,306.17