Finding the Fourth Proportional to 3,612.27, 5,419.51 and 3,239.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,612.27 : 5,419.51 = 3,239.72 : x
2. Step 2: Convert to fraction form
   3,612.27/5,419.51 = 3,239.72/x
3. Step 3: Cross multiply
   3,612.27x = 5,419.51 × 3,239.72
4. Step 4: Simplify right side
   3,612.27x = 17,557,663.83
5. Step 5: Solve for x
   x = 17,557,663.83/3,612.27
6. Step 6: Final answer
   x = 4,860.57