Finding the Fourth Proportional to 139,787.72, 192,932.33 and 82,423.62

Step by Step Solution

1. Step 1: Write the proportion equation
   139,787.72 : 192,932.33 = 82,423.62 : x
2. Step 2: Convert to fraction form
   139,787.72/192,932.33 = 82,423.62/x
3. Step 3: Cross multiply
   139,787.72x = 192,932.33 × 82,423.62
4. Step 4: Simplify right side
   139,787.72x = 15,902,180,641.52
5. Step 5: Solve for x
   x = 15,902,180,641.52/139,787.72
6. Step 6: Final answer
   x = 113,759.50