Finding the Fourth Proportional to 139,723.84, 192,789 and 83,124.16

Step by Step Solution

1. Step 1: Write the proportion equation
   139,723.84 : 192,789 = 83,124.16 : x
2. Step 2: Convert to fraction form
   139,723.84/192,789 = 83,124.16/x
3. Step 3: Cross multiply
   139,723.84x = 192,789 × 83,124.16
4. Step 4: Simplify right side
   139,723.84x = 16,025,423,682.24
5. Step 5: Solve for x
   x = 16,025,423,682.24/139,723.84
6. Step 6: Final answer
   x = 114,693.55