Finding the Fourth Proportional to 81,339.88, 112,243.82 and 45,038.92

Step by Step Solution

1. Step 1: Write the proportion equation
   81,339.88 : 112,243.82 = 45,038.92 : x
2. Step 2: Convert to fraction form
   81,339.88/112,243.82 = 45,038.92/x
3. Step 3: Cross multiply
   81,339.88x = 112,243.82 × 45,038.92
4. Step 4: Simplify right side
   81,339.88x = 5,055,340,429.47
5. Step 5: Solve for x
   x = 5,055,340,429.47/81,339.88
6. Step 6: Final answer
   x = 62,150.82