Finding the Fourth Proportional to 22,149.72, 30,565.89 and 12,589.02

Step by Step Solution

1. Step 1: Write the proportion equation
   22,149.72 : 30,565.89 = 12,589.02 : x
2. Step 2: Convert to fraction form
   22,149.72/30,565.89 = 12,589.02/x
3. Step 3: Cross multiply
   22,149.72x = 30,565.89 × 12,589.02
4. Step 4: Simplify right side
   22,149.72x = 384,794,600.53
5. Step 5: Solve for x
   x = 384,794,600.53/22,149.72
6. Step 6: Final answer
   x = 17,372.44