Finding the Fourth Proportional to 139,432.16, 192,432.72 and 82,843.52

Step by Step Solution

1. Step 1: Write the proportion equation
   139,432.16 : 192,432.72 = 82,843.52 : x
2. Step 2: Convert to fraction form
   139,432.16/192,432.72 = 82,843.52/x
3. Step 3: Cross multiply
   139,432.16x = 192,432.72 × 82,843.52
4. Step 4: Simplify right side
   139,432.16x = 15,941,803,887.97
5. Step 5: Solve for x
   x = 15,941,803,887.97/139,432.16
6. Step 6: Final answer
   x = 114,333.77