Finding the Fourth Proportional to 12,576.24, 18,863.82 and 3,216.51

Step by Step Solution

1. Step 1: Write the proportion equation
   12,576.24 : 18,863.82 = 3,216.51 : x
2. Step 2: Convert to fraction form
   12,576.24/18,863.82 = 3,216.51/x
3. Step 3: Cross multiply
   12,576.24x = 18,863.82 × 3,216.51
4. Step 4: Simplify right side
   12,576.24x = 60,675,665.67
5. Step 5: Solve for x
   x = 60,675,665.67/12,576.24
6. Step 6: Final answer
   x = 4,824.63