Finding the Fourth Proportional to 12,022.39, 18,031.32 and 3,256.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,022.39 : 18,031.32 = 3,256.15 : x
2. Step 2: Convert to fraction form
   12,022.39/18,031.32 = 3,256.15/x
3. Step 3: Cross multiply
   12,022.39x = 18,031.32 × 3,256.15
4. Step 4: Simplify right side
   12,022.39x = 58,712,682.62
5. Step 5: Solve for x
   x = 58,712,682.62/12,022.39
6. Step 6: Final answer
   x = 4,883.61