Finding the Fourth Proportional to 16,452.50, 22,705 and 9,000.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,452.50 : 22,705 = 9,000.50 : x
2. Step 2: Convert to fraction form
   16,452.50/22,705 = 9,000.50/x
3. Step 3: Cross multiply
   16,452.50x = 22,705 × 9,000.50
4. Step 4: Simplify right side
   16,452.50x = 204,356,352.50
5. Step 5: Solve for x
   x = 204,356,352.50/16,452.50
6. Step 6: Final answer
   x = 12,420.99