Finding the Fourth Proportional to 20,443.42, 30,676.94 and 8,596.25

Step by Step Solution

1. Step 1: Write the proportion equation
   20,443.42 : 30,676.94 = 8,596.25 : x
2. Step 2: Convert to fraction form
   20,443.42/30,676.94 = 8,596.25/x
3. Step 3: Cross multiply
   20,443.42x = 30,676.94 × 8,596.25
4. Step 4: Simplify right side
   20,443.42x = 263,706,645.48
5. Step 5: Solve for x
   x = 263,706,645.48/20,443.42
6. Step 6: Final answer
   x = 12,899.34