Finding the Fourth Proportional to 6,429.42, 9,629.01 and 3,132.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,429.42 : 9,629.01 = 3,132.18 : x
2. Step 2: Convert to fraction form
   6,429.42/9,629.01 = 3,132.18/x
3. Step 3: Cross multiply
   6,429.42x = 9,629.01 × 3,132.18
4. Step 4: Simplify right side
   6,429.42x = 30,159,792.54
5. Step 5: Solve for x
   x = 30,159,792.54/6,429.42
6. Step 6: Final answer
   x = 4,690.90