Finding the Fourth Proportional to 6,651.92, 9,975.72 and 3,141.38

Step by Step Solution

1. Step 1: Write the proportion equation
   6,651.92 : 9,975.72 = 3,141.38 : x
2. Step 2: Convert to fraction form
   6,651.92/9,975.72 = 3,141.38/x
3. Step 3: Cross multiply
   6,651.92x = 9,975.72 × 3,141.38
4. Step 4: Simplify right side
   6,651.92x = 31,337,527.29
5. Step 5: Solve for x
   x = 31,337,527.29/6,651.92
6. Step 6: Final answer
   x = 4,711.05