Finding the Fourth Proportional to 139,722.84, 192,787.62 and 83,123.16

Step by Step Solution

1. Step 1: Write the proportion equation
   139,722.84 : 192,787.62 = 83,123.16 : x
2. Step 2: Convert to fraction form
   139,722.84/192,787.62 = 83,123.16/x
3. Step 3: Cross multiply
   139,722.84x = 192,787.62 × 83,123.16
4. Step 4: Simplify right side
   139,722.84x = 16,025,116,183.28
5. Step 5: Solve for x
   x = 16,025,116,183.28/139,722.84
6. Step 6: Final answer
   x = 114,692.17