Finding the Fourth Proportional to 11,148.72, 16,718.88 and 3,650.54

Step by Step Solution

1. Step 1: Write the proportion equation
   11,148.72 : 16,718.88 = 3,650.54 : x
2. Step 2: Convert to fraction form
   11,148.72/16,718.88 = 3,650.54/x
3. Step 3: Cross multiply
   11,148.72x = 16,718.88 × 3,650.54
4. Step 4: Simplify right side
   11,148.72x = 61,032,940.20
5. Step 5: Solve for x
   x = 61,032,940.20/11,148.72
6. Step 6: Final answer
   x = 5,474.43