Finding the Fourth Proportional to 139,766.56, 192,852.23 and 82,423.87

Step by Step Solution

1. Step 1: Write the proportion equation
   139,766.56 : 192,852.23 = 82,423.87 : x
2. Step 2: Convert to fraction form
   139,766.56/192,852.23 = 82,423.87/x
3. Step 3: Cross multiply
   139,766.56x = 192,852.23 × 82,423.87
4. Step 4: Simplify right side
   139,766.56x = 15,895,626,240.48
5. Step 5: Solve for x
   x = 15,895,626,240.48/139,766.56
6. Step 6: Final answer
   x = 113,729.83