Finding the Fourth Proportional to 139,432.06, 192,444.18 and 82,832.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,432.06 : 192,444.18 = 82,832.50 : x
2. Step 2: Convert to fraction form
   139,432.06/192,444.18 = 82,832.50/x
3. Step 3: Cross multiply
   139,432.06x = 192,444.18 × 82,832.50
4. Step 4: Simplify right side
   139,432.06x = 15,940,632,539.85
5. Step 5: Solve for x
   x = 15,940,632,539.85/139,432.06
6. Step 6: Final answer
   x = 114,325.45