Finding the Fourth Proportional to 16,564.17, 22,859.15 and 9,491.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,564.17 : 22,859.15 = 9,491.96 : x
2. Step 2: Convert to fraction form
   16,564.17/22,859.15 = 9,491.96/x
3. Step 3: Cross multiply
   16,564.17x = 22,859.15 × 9,491.96
4. Step 4: Simplify right side
   16,564.17x = 216,978,137.43
5. Step 5: Solve for x
   x = 216,978,137.43/16,564.17
6. Step 6: Final answer
   x = 13,099.25