Finding the Fourth Proportional to 21,452.57, 32,167.86 and 8,969.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,452.57 : 32,167.86 = 8,969.18 : x
2. Step 2: Convert to fraction form
   21,452.57/32,167.86 = 8,969.18/x
3. Step 3: Cross multiply
   21,452.57x = 32,167.86 × 8,969.18
4. Step 4: Simplify right side
   21,452.57x = 288,519,165.72
5. Step 5: Solve for x
   x = 288,519,165.72/21,452.57
6. Step 6: Final answer
   x = 13,449.17