Finding the Fourth Proportional to 81,705.32, 112,765.54 and 49,892.52

Step by Step Solution

1. Step 1: Write the proportion equation
   81,705.32 : 112,765.54 = 49,892.52 : x
2. Step 2: Convert to fraction form
   81,705.32/112,765.54 = 49,892.52/x
3. Step 3: Cross multiply
   81,705.32x = 112,765.54 × 49,892.52
4. Step 4: Simplify right side
   81,705.32x = 5,626,156,959.76
5. Step 5: Solve for x
   x = 5,626,156,959.76/81,705.32
6. Step 6: Final answer
   x = 68,859.13