Finding the Fourth Proportional to 10,982.28, 16,469.31 and 3,960.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,982.28 : 16,469.31 = 3,960.39 : x
2. Step 2: Convert to fraction form
   10,982.28/16,469.31 = 3,960.39/x
3. Step 3: Cross multiply
   10,982.28x = 16,469.31 × 3,960.39
4. Step 4: Simplify right side
   10,982.28x = 65,224,890.63
5. Step 5: Solve for x
   x = 65,224,890.63/10,982.28
6. Step 6: Final answer
   x = 5,939.10