Finding the Fourth Proportional to 22,200.67, 30,637.85 and 12,769.24

Step by Step Solution

1. Step 1: Write the proportion equation
   22,200.67 : 30,637.85 = 12,769.24 : x
2. Step 2: Convert to fraction form
   22,200.67/30,637.85 = 12,769.24/x
3. Step 3: Cross multiply
   22,200.67x = 30,637.85 × 12,769.24
4. Step 4: Simplify right side
   22,200.67x = 391,222,059.73
5. Step 5: Solve for x
   x = 391,222,059.73/22,200.67
6. Step 6: Final answer
   x = 17,622.08