Finding the Fourth Proportional to 81,061.29, 111,862.71 and 45,254.70

Step by Step Solution

1. Step 1: Write the proportion equation
   81,061.29 : 111,862.71 = 45,254.70 : x
2. Step 2: Convert to fraction form
   81,061.29/111,862.71 = 45,254.70/x
3. Step 3: Cross multiply
   81,061.29x = 111,862.71 × 45,254.70
4. Step 4: Simplify right side
   81,061.29x = 5,062,313,382.24
5. Step 5: Solve for x
   x = 5,062,313,382.24/81,061.29
6. Step 6: Final answer
   x = 62,450.44