Finding the Fourth Proportional to 140,086.39, 193,311.34 and 79,671.73

Step by Step Solution

1. Step 1: Write the proportion equation
   140,086.39 : 193,311.34 = 79,671.73 : x
2. Step 2: Convert to fraction form
   140,086.39/193,311.34 = 79,671.73/x
3. Step 3: Cross multiply
   140,086.39x = 193,311.34 × 79,671.73
4. Step 4: Simplify right side
   140,086.39x = 15,401,448,886.42
5. Step 5: Solve for x
   x = 15,401,448,886.42/140,086.39
6. Step 6: Final answer
   x = 109,942.51