Finding the Fourth Proportional to 6,287.10, 9,423.76 and 3,162.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,287.10 : 9,423.76 = 3,162.12 : x
2. Step 2: Convert to fraction form
   6,287.10/9,423.76 = 3,162.12/x
3. Step 3: Cross multiply
   6,287.10x = 9,423.76 × 3,162.12
4. Step 4: Simplify right side
   6,287.10x = 29,799,059.97
5. Step 5: Solve for x
   x = 29,799,059.97/6,287.10
6. Step 6: Final answer
   x = 4,739.71