Finding the Fourth Proportional to 16,567.91, 22,872.18 and 12,782.57

Step by Step Solution

1. Step 1: Write the proportion equation
   16,567.91 : 22,872.18 = 12,782.57 : x
2. Step 2: Convert to fraction form
   16,567.91/22,872.18 = 12,782.57/x
3. Step 3: Cross multiply
   16,567.91x = 22,872.18 × 12,782.57
4. Step 4: Simplify right side
   16,567.91x = 292,365,127.54
5. Step 5: Solve for x
   x = 292,365,127.54/16,567.91
6. Step 6: Final answer
   x = 17,646.48