Finding the Fourth Proportional to 81,766.48, 112,841.76 and 49,930.24

Step by Step Solution

1. Step 1: Write the proportion equation
   81,766.48 : 112,841.76 = 49,930.24 : x
2. Step 2: Convert to fraction form
   81,766.48/112,841.76 = 49,930.24/x
3. Step 3: Cross multiply
   81,766.48x = 112,841.76 × 49,930.24
4. Step 4: Simplify right side
   81,766.48x = 5,634,216,158.82
5. Step 5: Solve for x
   x = 5,634,216,158.82/81,766.48
6. Step 6: Final answer
   x = 68,906.18