Finding the Fourth Proportional to 9,360.24, 14,031.68 and 3,520.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,360.24 : 14,031.68 = 3,520.72 : x
2. Step 2: Convert to fraction form
   9,360.24/14,031.68 = 3,520.72/x
3. Step 3: Cross multiply
   9,360.24x = 14,031.68 × 3,520.72
4. Step 4: Simplify right side
   9,360.24x = 49,401,616.41
5. Step 5: Solve for x
   x = 49,401,616.41/9,360.24
6. Step 6: Final answer
   x = 5,277.82