Finding the Fourth Proportional to 139,733.75, 192,881.18 and 83,143.91

Step by Step Solution

1. Step 1: Write the proportion equation
   139,733.75 : 192,881.18 = 83,143.91 : x
2. Step 2: Convert to fraction form
   139,733.75/192,881.18 = 83,143.91/x
3. Step 3: Cross multiply
   139,733.75x = 192,881.18 × 83,143.91
4. Step 4: Simplify right side
   139,733.75x = 16,036,895,470.61
5. Step 5: Solve for x
   x = 16,036,895,470.61/139,733.75
6. Step 6: Final answer
   x = 114,767.52