Finding the Fourth Proportional to 16,225.30, 22,389.17 and 9,509.59

Step by Step Solution

1. Step 1: Write the proportion equation
   16,225.30 : 22,389.17 = 9,509.59 : x
2. Step 2: Convert to fraction form
   16,225.30/22,389.17 = 9,509.59/x
3. Step 3: Cross multiply
   16,225.30x = 22,389.17 × 9,509.59
4. Step 4: Simplify right side
   16,225.30x = 212,911,723.62
5. Step 5: Solve for x
   x = 212,911,723.62/16,225.30
6. Step 6: Final answer
   x = 13,122.21