Finding the Fourth Proportional to 13,442.52, 20,162.24 and 3,581.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,442.52 : 20,162.24 = 3,581.56 : x
2. Step 2: Convert to fraction form
   13,442.52/20,162.24 = 3,581.56/x
3. Step 3: Cross multiply
   13,442.52x = 20,162.24 × 3,581.56
4. Step 4: Simplify right side
   13,442.52x = 72,212,272.29
5. Step 5: Solve for x
   x = 72,212,272.29/13,442.52
6. Step 6: Final answer
   x = 5,371.93