Finding the Fourth Proportional to 16,221.45, 22,385.60 and 8,769.45

Step by Step Solution

1. Step 1: Write the proportion equation
   16,221.45 : 22,385.60 = 8,769.45 : x
2. Step 2: Convert to fraction form
   16,221.45/22,385.60 = 8,769.45/x
3. Step 3: Cross multiply
   16,221.45x = 22,385.60 × 8,769.45
4. Step 4: Simplify right side
   16,221.45x = 196,309,399.92
5. Step 5: Solve for x
   x = 196,309,399.92/16,221.45
6. Step 6: Final answer
   x = 12,101.84