Finding the Fourth Proportional to 10,439.60, 15,661.82 and 3,514.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,439.60 : 15,661.82 = 3,514.10 : x
2. Step 2: Convert to fraction form
   10,439.60/15,661.82 = 3,514.10/x
3. Step 3: Cross multiply
   10,439.60x = 15,661.82 × 3,514.10
4. Step 4: Simplify right side
   10,439.60x = 55,037,123.35
5. Step 5: Solve for x
   x = 55,037,123.35/10,439.60
6. Step 6: Final answer
   x = 5,271.96