Finding the Fourth Proportional to 20,468.82, 30,700.18 and 5,676.20

Step by Step Solution

1. Step 1: Write the proportion equation
   20,468.82 : 30,700.18 = 5,676.20 : x
2. Step 2: Convert to fraction form
   20,468.82/30,700.18 = 5,676.20/x
3. Step 3: Cross multiply
   20,468.82x = 30,700.18 × 5,676.20
4. Step 4: Simplify right side
   20,468.82x = 174,260,361.72
5. Step 5: Solve for x
   x = 174,260,361.72/20,468.82
6. Step 6: Final answer
   x = 8,513.45