Finding the Fourth Proportional to 3,612.50, 5,404.84 and 3,603.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,612.50 : 5,404.84 = 3,603.28 : x
2. Step 2: Convert to fraction form
   3,612.50/5,404.84 = 3,603.28/x
3. Step 3: Cross multiply
   3,612.50x = 5,404.84 × 3,603.28
4. Step 4: Simplify right side
   3,612.50x = 19,475,151.88
5. Step 5: Solve for x
   x = 19,475,151.88/3,612.50
6. Step 6: Final answer
   x = 5,391.05