Finding the Fourth Proportional to 8,141.24, 12,204.66 and 3,521.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,141.24 : 12,204.66 = 3,521.72 : x
2. Step 2: Convert to fraction form
   8,141.24/12,204.66 = 3,521.72/x
3. Step 3: Cross multiply
   8,141.24x = 12,204.66 × 3,521.72
4. Step 4: Simplify right side
   8,141.24x = 42,981,395.22
5. Step 5: Solve for x
   x = 42,981,395.22/8,141.24
6. Step 6: Final answer
   x = 5,279.47