Finding the Fourth Proportional to 5,490.33, 7,571.46 and 3,603.55

Step by Step Solution

1. Step 1: Write the proportion equation
   5,490.33 : 7,571.46 = 3,603.55 : x
2. Step 2: Convert to fraction form
   5,490.33/7,571.46 = 3,603.55/x
3. Step 3: Cross multiply
   5,490.33x = 7,571.46 × 3,603.55
4. Step 4: Simplify right side
   5,490.33x = 27,284,111.52
5. Step 5: Solve for x
   x = 27,284,111.52/5,490.33
6. Step 6: Final answer
   x = 4,969.49