Finding the Fourth Proportional to 16,344.86, 22,566.72 and 12,561

Step by Step Solution

1. Step 1: Write the proportion equation
   16,344.86 : 22,566.72 = 12,561 : x
2. Step 2: Convert to fraction form
   16,344.86/22,566.72 = 12,561/x
3. Step 3: Cross multiply
   16,344.86x = 22,566.72 × 12,561
4. Step 4: Simplify right side
   16,344.86x = 283,460,569.92
5. Step 5: Solve for x
   x = 283,460,569.92/16,344.86
6. Step 6: Final answer
   x = 17,342.50