Finding the Fourth Proportional to 16,354.16, 22,561.20 and 9,635.21

Step by Step Solution

1. Step 1: Write the proportion equation
   16,354.16 : 22,561.20 = 9,635.21 : x
2. Step 2: Convert to fraction form
   16,354.16/22,561.20 = 9,635.21/x
3. Step 3: Cross multiply
   16,354.16x = 22,561.20 × 9,635.21
4. Step 4: Simplify right side
   16,354.16x = 217,381,871.65
5. Step 5: Solve for x
   x = 217,381,871.65/16,354.16
6. Step 6: Final answer
   x = 13,292.15