Finding the Fourth Proportional to 248,891.98, 373,306.17 and 80,394.79

Step by Step Solution

1. Step 1: Write the proportion equation
   248,891.98 : 373,306.17 = 80,394.79 : x
2. Step 2: Convert to fraction form
   248,891.98/373,306.17 = 80,394.79/x
3. Step 3: Cross multiply
   248,891.98x = 373,306.17 × 80,394.79
4. Step 4: Simplify right side
   248,891.98x = 30,011,871,142.85
5. Step 5: Solve for x
   x = 30,011,871,142.85/248,891.98
6. Step 6: Final answer
   x = 120,581.91