Finding the Fourth Proportional to 22,169.52, 30,593.92 and 12,738.06

Step by Step Solution

1. Step 1: Write the proportion equation
   22,169.52 : 30,593.92 = 12,738.06 : x
2. Step 2: Convert to fraction form
   22,169.52/30,593.92 = 12,738.06/x
3. Step 3: Cross multiply
   22,169.52x = 30,593.92 × 12,738.06
4. Step 4: Simplify right side
   22,169.52x = 389,707,003.78
5. Step 5: Solve for x
   x = 389,707,003.78/22,169.52
6. Step 6: Final answer
   x = 17,578.51