Finding the Fourth Proportional to 22,424.25, 30,945.63 and 12,864.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,424.25 : 30,945.63 = 12,864.56 : x
2. Step 2: Convert to fraction form
   22,424.25/30,945.63 = 12,864.56/x
3. Step 3: Cross multiply
   22,424.25x = 30,945.63 × 12,864.56
4. Step 4: Simplify right side
   22,424.25x = 398,101,909.09
5. Step 5: Solve for x
   x = 398,101,909.09/22,424.25
6. Step 6: Final answer
   x = 17,753.18