Finding the Fourth Proportional to 81,744.84, 112,818.96 and 49,921.56

Step by Step Solution

1. Step 1: Write the proportion equation
   81,744.84 : 112,818.96 = 49,921.56 : x
2. Step 2: Convert to fraction form
   81,744.84/112,818.96 = 49,921.56/x
3. Step 3: Cross multiply
   81,744.84x = 112,818.96 × 49,921.56
4. Step 4: Simplify right side
   81,744.84x = 5,632,098,480.78
5. Step 5: Solve for x
   x = 5,632,098,480.78/81,744.84
6. Step 6: Final answer
   x = 68,898.52