Finding the Fourth Proportional to 16,417.50, 22,656.15 and 8,965.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,417.50 : 22,656.15 = 8,965.50 : x
2. Step 2: Convert to fraction form
   16,417.50/22,656.15 = 8,965.50/x
3. Step 3: Cross multiply
   16,417.50x = 22,656.15 × 8,965.50
4. Step 4: Simplify right side
   16,417.50x = 203,123,712.83
5. Step 5: Solve for x
   x = 203,123,712.83/16,417.50
6. Step 6: Final answer
   x = 12,372.39