Finding the Fourth Proportional to 7,240.57, 10,861.71 and 2,308.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,240.57 : 10,861.71 = 2,308.48 : x
2. Step 2: Convert to fraction form
   7,240.57/10,861.71 = 2,308.48/x
3. Step 3: Cross multiply
   7,240.57x = 10,861.71 × 2,308.48
4. Step 4: Simplify right side
   7,240.57x = 25,074,040.30
5. Step 5: Solve for x
   x = 25,074,040.30/7,240.57
6. Step 6: Final answer
   x = 3,462.99