Finding the Fourth Proportional to 16,222.50, 22,387.05 and 8,770.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,222.50 : 22,387.05 = 8,770.50 : x
2. Step 2: Convert to fraction form
   16,222.50/22,387.05 = 8,770.50/x
3. Step 3: Cross multiply
   16,222.50x = 22,387.05 × 8,770.50
4. Step 4: Simplify right side
   16,222.50x = 196,345,622.03
5. Step 5: Solve for x
   x = 196,345,622.03/16,222.50
6. Step 6: Final answer
   x = 12,103.29