Finding the Fourth Proportional to 11,355.63, 17,031.42 and 3,456.24

Step by Step Solution

1. Step 1: Write the proportion equation
   11,355.63 : 17,031.42 = 3,456.24 : x
2. Step 2: Convert to fraction form
   11,355.63/17,031.42 = 3,456.24/x
3. Step 3: Cross multiply
   11,355.63x = 17,031.42 × 3,456.24
4. Step 4: Simplify right side
   11,355.63x = 58,864,675.06
5. Step 5: Solve for x
   x = 58,864,675.06/11,355.63
6. Step 6: Final answer
   x = 5,183.74