Finding the Fourth Proportional to 3,673.55, 5,537.85 and 3,429.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,673.55 : 5,537.85 = 3,429.15 : x
2. Step 2: Convert to fraction form
   3,673.55/5,537.85 = 3,429.15/x
3. Step 3: Cross multiply
   3,673.55x = 5,537.85 × 3,429.15
4. Step 4: Simplify right side
   3,673.55x = 18,990,118.33
5. Step 5: Solve for x
   x = 18,990,118.33/3,673.55
6. Step 6: Final answer
   x = 5,169.42