Finding the Fourth Proportional to 10,982.24, 16,452.72 and 5,429.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,982.24 : 16,452.72 = 5,429.12 : x
2. Step 2: Convert to fraction form
   10,982.24/16,452.72 = 5,429.12/x
3. Step 3: Cross multiply
   10,982.24x = 16,452.72 × 5,429.12
4. Step 4: Simplify right side
   10,982.24x = 89,323,791.21
5. Step 5: Solve for x
   x = 89,323,791.21/10,982.24
6. Step 6: Final answer
   x = 8,133.48