Finding the Fourth Proportional to 139,586.56, 192,565.92 and 82,965.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,586.56 : 192,565.92 = 82,965.76 : x
2. Step 2: Convert to fraction form
   139,586.56/192,565.92 = 82,965.76/x
3. Step 3: Cross multiply
   139,586.56x = 192,565.92 × 82,965.76
4. Step 4: Simplify right side
   139,586.56x = 15,976,377,902.90
5. Step 5: Solve for x
   x = 15,976,377,902.90/139,586.56
6. Step 6: Final answer
   x = 114,454.99