Finding the Fourth Proportional to 16,308.50, 22,505.73 and 8,856.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,308.50 : 22,505.73 = 8,856.50 : x
2. Step 2: Convert to fraction form
   16,308.50/22,505.73 = 8,856.50/x
3. Step 3: Cross multiply
   16,308.50x = 22,505.73 × 8,856.50
4. Step 4: Simplify right side
   16,308.50x = 199,321,997.75
5. Step 5: Solve for x
   x = 199,321,997.75/16,308.50
6. Step 6: Final answer
   x = 12,221.97