Finding the Fourth Proportional to 16,221.50, 22,385.70 and 8,769.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,221.50 : 22,385.70 = 8,769.50 : x
2. Step 2: Convert to fraction form
   16,221.50/22,385.70 = 8,769.50/x
3. Step 3: Cross multiply
   16,221.50x = 22,385.70 × 8,769.50
4. Step 4: Simplify right side
   16,221.50x = 196,311,396.15
5. Step 5: Solve for x
   x = 196,311,396.15/16,221.50
6. Step 6: Final answer
   x = 12,101.93