Finding the Fourth Proportional to 6,862.58, 10,287.69 and 3,162.90

Step by Step Solution

1. Step 1: Write the proportion equation
   6,862.58 : 10,287.69 = 3,162.90 : x
2. Step 2: Convert to fraction form
   6,862.58/10,287.69 = 3,162.90/x
3. Step 3: Cross multiply
   6,862.58x = 10,287.69 × 3,162.90
4. Step 4: Simplify right side
   6,862.58x = 32,538,934.70
5. Step 5: Solve for x
   x = 32,538,934.70/6,862.58
6. Step 6: Final answer
   x = 4,741.50