Finding the Fourth Proportional to 11,400.56, 17,103 and 3,608.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,400.56 : 17,103 = 3,608.72 : x
2. Step 2: Convert to fraction form
   11,400.56/17,103 = 3,608.72/x
3. Step 3: Cross multiply
   11,400.56x = 17,103 × 3,608.72
4. Step 4: Simplify right side
   11,400.56x = 61,719,938.16
5. Step 5: Solve for x
   x = 61,719,938.16/11,400.56
6. Step 6: Final answer
   x = 5,413.76