Finding the Fourth Proportional to 4,039.72, 6,065.34 and 3,072.04

Step by Step Solution

1. Step 1: Write the proportion equation
   4,039.72 : 6,065.34 = 3,072.04 : x
2. Step 2: Convert to fraction form
   4,039.72/6,065.34 = 3,072.04/x
3. Step 3: Cross multiply
   4,039.72x = 6,065.34 × 3,072.04
4. Step 4: Simplify right side
   4,039.72x = 18,632,967.09
5. Step 5: Solve for x
   x = 18,632,967.09/4,039.72
6. Step 6: Final answer
   x = 4,612.44