Finding the Fourth Proportional to 11,967.44, 17,951.83 and 3,647.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,967.44 : 17,951.83 = 3,647.72 : x
2. Step 2: Convert to fraction form
   11,967.44/17,951.83 = 3,647.72/x
3. Step 3: Cross multiply
   11,967.44x = 17,951.83 × 3,647.72
4. Step 4: Simplify right side
   11,967.44x = 65,483,231.09
5. Step 5: Solve for x
   x = 65,483,231.09/11,967.44
6. Step 6: Final answer
   x = 5,471.78