Finding the Fourth Proportional to 16,443.69, 24,687.39 and 8,657.97

Step by Step Solution

1. Step 1: Write the proportion equation
   16,443.69 : 24,687.39 = 8,657.97 : x
2. Step 2: Convert to fraction form
   16,443.69/24,687.39 = 8,657.97/x
3. Step 3: Cross multiply
   16,443.69x = 24,687.39 × 8,657.97
4. Step 4: Simplify right side
   16,443.69x = 213,742,682.00
5. Step 5: Solve for x
   x = 213,742,682.00/16,443.69
6. Step 6: Final answer
   x = 12,998.46