Finding the Fourth Proportional to 20,581.41, 30,868.52 and 5,786.82

Step by Step Solution

1. Step 1: Write the proportion equation
   20,581.41 : 30,868.52 = 5,786.82 : x
2. Step 2: Convert to fraction form
   20,581.41/30,868.52 = 5,786.82/x
3. Step 3: Cross multiply
   20,581.41x = 30,868.52 × 5,786.82
4. Step 4: Simplify right side
   20,581.41x = 178,630,568.91
5. Step 5: Solve for x
   x = 178,630,568.91/20,581.41
6. Step 6: Final answer
   x = 8,679.22