Finding the Fourth Proportional to 11,613.29, 17,418.74 and 3,180.54

Step by Step Solution

1. Step 1: Write the proportion equation
   11,613.29 : 17,418.74 = 3,180.54 : x
2. Step 2: Convert to fraction form
   11,613.29/17,418.74 = 3,180.54/x
3. Step 3: Cross multiply
   11,613.29x = 17,418.74 × 3,180.54
4. Step 4: Simplify right side
   11,613.29x = 55,401,007.27
5. Step 5: Solve for x
   x = 55,401,007.27/11,613.29
6. Step 6: Final answer
   x = 4,770.48