Finding the Fourth Proportional to 16,350.81, 22,564.85 and 9,636.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,350.81 : 22,564.85 = 9,636.72 : x
2. Step 2: Convert to fraction form
   16,350.81/22,564.85 = 9,636.72/x
3. Step 3: Cross multiply
   16,350.81x = 22,564.85 × 9,636.72
4. Step 4: Simplify right side
   16,350.81x = 217,451,141.29
5. Step 5: Solve for x
   x = 217,451,141.29/16,350.81
6. Step 6: Final answer
   x = 13,299.11