Finding the Fourth Proportional to 12,408.31, 18,613.68 and 3,644.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,408.31 : 18,613.68 = 3,644.52 : x
2. Step 2: Convert to fraction form
   12,408.31/18,613.68 = 3,644.52/x
3. Step 3: Cross multiply
   12,408.31x = 18,613.68 × 3,644.52
4. Step 4: Simplify right side
   12,408.31x = 67,837,929.03
5. Step 5: Solve for x
   x = 67,837,929.03/12,408.31
6. Step 6: Final answer
   x = 5,467.14