Finding the Fourth Proportional to 16,389.34, 24,564.56 and 8,997.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,389.34 : 24,564.56 = 8,997.28 : x
2. Step 2: Convert to fraction form
   16,389.34/24,564.56 = 8,997.28/x
3. Step 3: Cross multiply
   16,389.34x = 24,564.56 × 8,997.28
4. Step 4: Simplify right side
   16,389.34x = 221,014,224.40
5. Step 5: Solve for x
   x = 221,014,224.40/16,389.34
6. Step 6: Final answer
   x = 13,485.24