Finding the Fourth Proportional to 81,778.94, 112,854.33 and 45,480.72

Step by Step Solution

1. Step 1: Write the proportion equation
   81,778.94 : 112,854.33 = 45,480.72 : x
2. Step 2: Convert to fraction form
   81,778.94/112,854.33 = 45,480.72/x
3. Step 3: Cross multiply
   81,778.94x = 112,854.33 × 45,480.72
4. Step 4: Simplify right side
   81,778.94x = 5,132,695,462.64
5. Step 5: Solve for x
   x = 5,132,695,462.64/81,778.94
6. Step 6: Final answer
   x = 62,763.05