Finding the Fourth Proportional to 139,346.88, 192,315.06 and 82,758.24

Step by Step Solution

1. Step 1: Write the proportion equation
   139,346.88 : 192,315.06 = 82,758.24 : x
2. Step 2: Convert to fraction form
   139,346.88/192,315.06 = 82,758.24/x
3. Step 3: Cross multiply
   139,346.88x = 192,315.06 × 82,758.24
4. Step 4: Simplify right side
   139,346.88x = 15,915,655,891.09
5. Step 5: Solve for x
   x = 15,915,655,891.09/139,346.88
6. Step 6: Final answer
   x = 114,216.09