Finding the Fourth Proportional to 17,581.91, 26,363.89 and 5,728.06

Step by Step Solution

1. Step 1: Write the proportion equation
   17,581.91 : 26,363.89 = 5,728.06 : x
2. Step 2: Convert to fraction form
   17,581.91/26,363.89 = 5,728.06/x
3. Step 3: Cross multiply
   17,581.91x = 26,363.89 × 5,728.06
4. Step 4: Simplify right side
   17,581.91x = 151,013,863.52
5. Step 5: Solve for x
   x = 151,013,863.52/17,581.91
6. Step 6: Final answer
   x = 8,589.16