Finding the Fourth Proportional to 6,424.56, 9,636.57 and 3,144.06

Step by Step Solution

1. Step 1: Write the proportion equation
   6,424.56 : 9,636.57 = 3,144.06 : x
2. Step 2: Convert to fraction form
   6,424.56/9,636.57 = 3,144.06/x
3. Step 3: Cross multiply
   6,424.56x = 9,636.57 × 3,144.06
4. Step 4: Simplify right side
   6,424.56x = 30,297,954.27
5. Step 5: Solve for x
   x = 30,297,954.27/6,424.56
6. Step 6: Final answer
   x = 4,715.96