Finding the Fourth Proportional to 10,880.14, 16,318.04 and 5,331.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,880.14 : 16,318.04 = 5,331.10 : x
2. Step 2: Convert to fraction form
   10,880.14/16,318.04 = 5,331.10/x
3. Step 3: Cross multiply
   10,880.14x = 16,318.04 × 5,331.10
4. Step 4: Simplify right side
   10,880.14x = 86,993,103.04
5. Step 5: Solve for x
   x = 86,993,103.04/10,880.14
6. Step 6: Final answer
   x = 7,995.59