Finding the Fourth Proportional to 3,603.35, 5,414.18 and 3,457.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,603.35 : 5,414.18 = 3,457.55 : x
2. Step 2: Convert to fraction form
   3,603.35/5,414.18 = 3,457.55/x
3. Step 3: Cross multiply
   3,603.35x = 5,414.18 × 3,457.55
4. Step 4: Simplify right side
   3,603.35x = 18,719,794.31
5. Step 5: Solve for x
   x = 18,719,794.31/3,603.35
6. Step 6: Final answer
   x = 5,195.10