Finding the Fourth Proportional to 6,614.48, 9,912.48 and 3,100.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,614.48 : 9,912.48 = 3,100.72 : x
2. Step 2: Convert to fraction form
   6,614.48/9,912.48 = 3,100.72/x
3. Step 3: Cross multiply
   6,614.48x = 9,912.48 × 3,100.72
4. Step 4: Simplify right side
   6,614.48x = 30,735,824.99
5. Step 5: Solve for x
   x = 30,735,824.99/6,614.48
6. Step 6: Final answer
   x = 4,646.75