Finding the Fourth Proportional to 80,888.50, 111,694.92 and 50,724.34

Step by Step Solution

1. Step 1: Write the proportion equation
   80,888.50 : 111,694.92 = 50,724.34 : x
2. Step 2: Convert to fraction form
   80,888.50/111,694.92 = 50,724.34/x
3. Step 3: Cross multiply
   80,888.50x = 111,694.92 × 50,724.34
4. Step 4: Simplify right side
   80,888.50x = 5,665,651,098.35
5. Step 5: Solve for x
   x = 5,665,651,098.35/80,888.50
6. Step 6: Final answer
   x = 70,042.73