Finding the Fourth Proportional to 6,614.32, 9,912.76 and 3,103.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,614.32 : 9,912.76 = 3,103.78 : x
2. Step 2: Convert to fraction form
   6,614.32/9,912.76 = 3,103.78/x
3. Step 3: Cross multiply
   6,614.32x = 9,912.76 × 3,103.78
4. Step 4: Simplify right side
   6,614.32x = 30,767,026.23
5. Step 5: Solve for x
   x = 30,767,026.23/6,614.32
6. Step 6: Final answer
   x = 4,651.58