Finding the Fourth Proportional to 11,031.96, 16,548.18 and 3,240.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,031.96 : 16,548.18 = 3,240.78 : x
2. Step 2: Convert to fraction form
   11,031.96/16,548.18 = 3,240.78/x
3. Step 3: Cross multiply
   11,031.96x = 16,548.18 × 3,240.78
4. Step 4: Simplify right side
   11,031.96x = 53,629,010.78
5. Step 5: Solve for x
   x = 53,629,010.78/11,031.96
6. Step 6: Final answer
   x = 4,861.24