Finding the Fourth Proportional to 16,267.89, 22,449.69 and 8,815.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,267.89 : 22,449.69 = 8,815.89 : x
2. Step 2: Convert to fraction form
   16,267.89/22,449.69 = 8,815.89/x
3. Step 3: Cross multiply
   16,267.89x = 22,449.69 × 8,815.89
4. Step 4: Simplify right side
   16,267.89x = 197,913,997.57
5. Step 5: Solve for x
   x = 197,913,997.57/16,267.89
6. Step 6: Final answer
   x = 12,165.93