Finding the Fourth Proportional to 16,262.42, 22,439.80 and 9,456.21

Step by Step Solution

1. Step 1: Write the proportion equation
   16,262.42 : 22,439.80 = 9,456.21 : x
2. Step 2: Convert to fraction form
   16,262.42/22,439.80 = 9,456.21/x
3. Step 3: Cross multiply
   16,262.42x = 22,439.80 × 9,456.21
4. Step 4: Simplify right side
   16,262.42x = 212,195,472.98
5. Step 5: Solve for x
   x = 212,195,472.98/16,262.42
6. Step 6: Final answer
   x = 13,048.21