Finding the Fourth Proportional to 12,048.39, 18,074.30 and 3,729.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,048.39 : 18,074.30 = 3,729.12 : x
2. Step 2: Convert to fraction form
   12,048.39/18,074.30 = 3,729.12/x
3. Step 3: Cross multiply
   12,048.39x = 18,074.30 × 3,729.12
4. Step 4: Simplify right side
   12,048.39x = 67,401,233.62
5. Step 5: Solve for x
   x = 67,401,233.62/12,048.39
6. Step 6: Final answer
   x = 5,594.21