Finding the Fourth Proportional to 139,363.11, 192,323.16 and 78,932.25

Step by Step Solution

1. Step 1: Write the proportion equation
   139,363.11 : 192,323.16 = 78,932.25 : x
2. Step 2: Convert to fraction form
   139,363.11/192,323.16 = 78,932.25/x
3. Step 3: Cross multiply
   139,363.11x = 192,323.16 × 78,932.25
4. Step 4: Simplify right side
   139,363.11x = 15,180,499,745.91
5. Step 5: Solve for x
   x = 15,180,499,745.91/139,363.11
6. Step 6: Final answer
   x = 108,927.68