Finding the Fourth Proportional to 22,145.39, 30,569.17 and 16,224.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,145.39 : 30,569.17 = 16,224.09 : x
2. Step 2: Convert to fraction form
   22,145.39/30,569.17 = 16,224.09/x
3. Step 3: Cross multiply
   22,145.39x = 30,569.17 × 16,224.09
4. Step 4: Simplify right side
   22,145.39x = 495,956,965.31
5. Step 5: Solve for x
   x = 495,956,965.31/22,145.39
6. Step 6: Final answer
   x = 22,395.49