Finding the Fourth Proportional to 3,672.15, 5,513.67 and 3,562.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,672.15 : 5,513.67 = 3,562.80 : x
2. Step 2: Convert to fraction form
   3,672.15/5,513.67 = 3,562.80/x
3. Step 3: Cross multiply
   3,672.15x = 5,513.67 × 3,562.80
4. Step 4: Simplify right side
   3,672.15x = 19,644,103.48
5. Step 5: Solve for x
   x = 19,644,103.48/3,672.15
6. Step 6: Final answer
   x = 5,349.48