Finding the Fourth Proportional to 16,285.21, 22,470.67 and 9,572.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,285.21 : 22,470.67 = 9,572.18 : x
2. Step 2: Convert to fraction form
   16,285.21/22,470.67 = 9,572.18/x
3. Step 3: Cross multiply
   16,285.21x = 22,470.67 × 9,572.18
4. Step 4: Simplify right side
   16,285.21x = 215,093,297.96
5. Step 5: Solve for x
   x = 215,093,297.96/16,285.21
6. Step 6: Final answer
   x = 13,207.89