Finding the Fourth Proportional to 6,429.26, 9,644.96 and 3,142.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,429.26 : 9,644.96 = 3,142.69 : x
2. Step 2: Convert to fraction form
   6,429.26/9,644.96 = 3,142.69/x
3. Step 3: Cross multiply
   6,429.26x = 9,644.96 × 3,142.69
4. Step 4: Simplify right side
   6,429.26x = 30,311,119.34
5. Step 5: Solve for x
   x = 30,311,119.34/6,429.26
6. Step 6: Final answer
   x = 4,714.56