Finding the Fourth Proportional to 6,614.21, 9,915.78 and 2,451.89

Step by Step Solution

1. Step 1: Write the proportion equation
   6,614.21 : 9,915.78 = 2,451.89 : x
2. Step 2: Convert to fraction form
   6,614.21/9,915.78 = 2,451.89/x
3. Step 3: Cross multiply
   6,614.21x = 9,915.78 × 2,451.89
4. Step 4: Simplify right side
   6,614.21x = 24,312,401.82
5. Step 5: Solve for x
   x = 24,312,401.82/6,614.21
6. Step 6: Final answer
   x = 3,675.78