Finding the Fourth Proportional to 11,039.45, 16,557.55 and 3,644.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,039.45 : 16,557.55 = 3,644.15 : x
2. Step 2: Convert to fraction form
   11,039.45/16,557.55 = 3,644.15/x
3. Step 3: Cross multiply
   11,039.45x = 16,557.55 × 3,644.15
4. Step 4: Simplify right side
   11,039.45x = 60,338,103.93
5. Step 5: Solve for x
   x = 60,338,103.93/11,039.45
6. Step 6: Final answer
   x = 5,465.68