Finding the Fourth Proportional to 12,047.96, 18,073.68 and 3,728.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,047.96 : 18,073.68 = 3,728.72 : x
2. Step 2: Convert to fraction form
   12,047.96/18,073.68 = 3,728.72/x
3. Step 3: Cross multiply
   12,047.96x = 18,073.68 × 3,728.72
4. Step 4: Simplify right side
   12,047.96x = 67,391,692.09
5. Step 5: Solve for x
   x = 67,391,692.09/12,047.96
6. Step 6: Final answer
   x = 5,593.62