Finding the Fourth Proportional to 16,663.20, 22,997.57 and 10,206.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,663.20 : 22,997.57 = 10,206.69 : x
2. Step 2: Convert to fraction form
   16,663.20/22,997.57 = 10,206.69/x
3. Step 3: Cross multiply
   16,663.20x = 22,997.57 × 10,206.69
4. Step 4: Simplify right side
   16,663.20x = 234,729,016.71
5. Step 5: Solve for x
   x = 234,729,016.71/16,663.20
6. Step 6: Final answer
   x = 14,086.67