Finding the Fourth Proportional to 20,579.91, 30,866.27 and 5,785.32

Step by Step Solution

1. Step 1: Write the proportion equation
   20,579.91 : 30,866.27 = 5,785.32 : x
2. Step 2: Convert to fraction form
   20,579.91/30,866.27 = 5,785.32/x
3. Step 3: Cross multiply
   20,579.91x = 30,866.27 × 5,785.32
4. Step 4: Simplify right side
   20,579.91x = 178,571,094.83
5. Step 5: Solve for x
   x = 178,571,094.83/20,579.91
6. Step 6: Final answer
   x = 8,676.96