Finding the Fourth Proportional to 11,054.53, 16,578.37 and 3,657.45

Step by Step Solution

1. Step 1: Write the proportion equation
   11,054.53 : 16,578.37 = 3,657.45 : x
2. Step 2: Convert to fraction form
   11,054.53/16,578.37 = 3,657.45/x
3. Step 3: Cross multiply
   11,054.53x = 16,578.37 × 3,657.45
4. Step 4: Simplify right side
   11,054.53x = 60,634,626.10
5. Step 5: Solve for x
   x = 60,634,626.10/11,054.53
6. Step 6: Final answer
   x = 5,485.05