Finding the Fourth Proportional to 3,909.24, 5,401.59 and 3,076.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,909.24 : 5,401.59 = 3,076.56 : x
2. Step 2: Convert to fraction form
   3,909.24/5,401.59 = 3,076.56/x
3. Step 3: Cross multiply
   3,909.24x = 5,401.59 × 3,076.56
4. Step 4: Simplify right side
   3,909.24x = 16,618,315.73
5. Step 5: Solve for x
   x = 16,618,315.73/3,909.24
6. Step 6: Final answer
   x = 4,251.03