Finding the Fourth Proportional to 20,496.84, 30,742.10 and 5,704.20

Step by Step Solution

1. Step 1: Write the proportion equation
   20,496.84 : 30,742.10 = 5,704.20 : x
2. Step 2: Convert to fraction form
   20,496.84/30,742.10 = 5,704.20/x
3. Step 3: Cross multiply
   20,496.84x = 30,742.10 × 5,704.20
4. Step 4: Simplify right side
   20,496.84x = 175,359,086.82
5. Step 5: Solve for x
   x = 175,359,086.82/20,496.84
6. Step 6: Final answer
   x = 8,555.42