Finding the Fourth Proportional to 16,399.04, 22,636.52 and 9,684.70

Step by Step Solution

1. Step 1: Write the proportion equation
   16,399.04 : 22,636.52 = 9,684.70 : x
2. Step 2: Convert to fraction form
   16,399.04/22,636.52 = 9,684.70/x
3. Step 3: Cross multiply
   16,399.04x = 22,636.52 × 9,684.70
4. Step 4: Simplify right side
   16,399.04x = 219,227,872.86
5. Step 5: Solve for x
   x = 219,227,872.86/16,399.04
6. Step 6: Final answer
   x = 13,368.33