Finding the Fourth Proportional to 139,798.86, 192,964.59 and 95,112.78

Step by Step Solution

1. Step 1: Write the proportion equation
   139,798.86 : 192,964.59 = 95,112.78 : x
2. Step 2: Convert to fraction form
   139,798.86/192,964.59 = 95,112.78/x
3. Step 3: Cross multiply
   139,798.86x = 192,964.59 × 95,112.78
4. Step 4: Simplify right side
   139,798.86x = 18,353,398,596.46
5. Step 5: Solve for x
   x = 18,353,398,596.46/139,798.86
6. Step 6: Final answer
   x = 131,284.32