Finding the Fourth Proportional to 139,805.94, 192,957.22 and 82,441.78

Step by Step Solution

1. Step 1: Write the proportion equation
   139,805.94 : 192,957.22 = 82,441.78 : x
2. Step 2: Convert to fraction form
   139,805.94/192,957.22 = 82,441.78/x
3. Step 3: Cross multiply
   139,805.94x = 192,957.22 × 82,441.78
4. Step 4: Simplify right side
   139,805.94x = 15,907,737,155.45
5. Step 5: Solve for x
   x = 15,907,737,155.45/139,805.94
6. Step 6: Final answer
   x = 113,784.42