Finding the Fourth Proportional to 5,436.88, 7,502.72 and 3,198.24

Step by Step Solution

1. Step 1: Write the proportion equation
   5,436.88 : 7,502.72 = 3,198.24 : x
2. Step 2: Convert to fraction form
   5,436.88/7,502.72 = 3,198.24/x
3. Step 3: Cross multiply
   5,436.88x = 7,502.72 × 3,198.24
4. Step 4: Simplify right side
   5,436.88x = 23,995,499.21
5. Step 5: Solve for x
   x = 23,995,499.21/5,436.88
6. Step 6: Final answer
   x = 4,413.47