Finding the Fourth Proportional to 139,708.37, 192,792.18 and 79,275.41

Step by Step Solution

1. Step 1: Write the proportion equation
   139,708.37 : 192,792.18 = 79,275.41 : x
2. Step 2: Convert to fraction form
   139,708.37/192,792.18 = 79,275.41/x
3. Step 3: Cross multiply
   139,708.37x = 192,792.18 × 79,275.41
4. Step 4: Simplify right side
   139,708.37x = 15,283,678,150.33
5. Step 5: Solve for x
   x = 15,283,678,150.33/139,708.37
6. Step 6: Final answer
   x = 109,397.02