Finding the Fourth Proportional to 5,151.12, 7,105.86 and 3,162.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,151.12 : 7,105.86 = 3,162.12 : x
2. Step 2: Convert to fraction form
   5,151.12/7,105.86 = 3,162.12/x
3. Step 3: Cross multiply
   5,151.12x = 7,105.86 × 3,162.12
4. Step 4: Simplify right side
   5,151.12x = 22,469,582.02
5. Step 5: Solve for x
   x = 22,469,582.02/5,151.12
6. Step 6: Final answer
   x = 4,362.08