Finding the Fourth Proportional to 140,086.14, 193,311 and 79,671.48

Step by Step Solution

1. Step 1: Write the proportion equation
   140,086.14 : 193,311 = 79,671.48 : x
2. Step 2: Convert to fraction form
   140,086.14/193,311 = 79,671.48/x
3. Step 3: Cross multiply
   140,086.14x = 193,311 × 79,671.48
4. Step 4: Simplify right side
   140,086.14x = 15,401,373,470.28
5. Step 5: Solve for x
   x = 15,401,373,470.28/140,086.14
6. Step 6: Final answer
   x = 109,942.16