Finding the Fourth Proportional to 139,305.12, 192,264.72 and 82,747.04

Step by Step Solution

1. Step 1: Write the proportion equation
   139,305.12 : 192,264.72 = 82,747.04 : x
2. Step 2: Convert to fraction form
   139,305.12/192,264.72 = 82,747.04/x
3. Step 3: Cross multiply
   139,305.12x = 192,264.72 × 82,747.04
4. Step 4: Simplify right side
   139,305.12x = 15,909,336,476.43
5. Step 5: Solve for x
   x = 15,909,336,476.43/139,305.12
6. Step 6: Final answer
   x = 114,204.97