Finding the Fourth Proportional to 12,614.72, 18,926.24 and 3,851.36

Step by Step Solution

1. Step 1: Write the proportion equation
   12,614.72 : 18,926.24 = 3,851.36 : x
2. Step 2: Convert to fraction form
   12,614.72/18,926.24 = 3,851.36/x
3. Step 3: Cross multiply
   12,614.72x = 18,926.24 × 3,851.36
4. Step 4: Simplify right side
   12,614.72x = 72,891,763.69
5. Step 5: Solve for x
   x = 72,891,763.69/12,614.72
6. Step 6: Final answer
   x = 5,778.31