Finding the Fourth Proportional to 3,747.36, 5,172.72 and 3,047.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,747.36 : 5,172.72 = 3,047.52 : x
2. Step 2: Convert to fraction form
   3,747.36/5,172.72 = 3,047.52/x
3. Step 3: Cross multiply
   3,747.36x = 5,172.72 × 3,047.52
4. Step 4: Simplify right side
   3,747.36x = 15,763,967.65
5. Step 5: Solve for x
   x = 15,763,967.65/3,747.36
6. Step 6: Final answer
   x = 4,206.69