Finding the Fourth Proportional to 16,722.50, 23,077.05 and 9,270.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,722.50 : 23,077.05 = 9,270.50 : x
2. Step 2: Convert to fraction form
   16,722.50/23,077.05 = 9,270.50/x
3. Step 3: Cross multiply
   16,722.50x = 23,077.05 × 9,270.50
4. Step 4: Simplify right side
   16,722.50x = 213,935,792.03
5. Step 5: Solve for x
   x = 213,935,792.03/16,722.50
6. Step 6: Final answer
   x = 12,793.29