Finding the Fourth Proportional to 12,404.34, 18,606.24 and 3,639.33

Step by Step Solution

1. Step 1: Write the proportion equation
   12,404.34 : 18,606.24 = 3,639.33 : x
2. Step 2: Convert to fraction form
   12,404.34/18,606.24 = 3,639.33/x
3. Step 3: Cross multiply
   12,404.34x = 18,606.24 × 3,639.33
4. Step 4: Simplify right side
   12,404.34x = 67,714,247.42
5. Step 5: Solve for x
   x = 67,714,247.42/12,404.34
6. Step 6: Final answer
   x = 5,458.92