Finding the Fourth Proportional to 8,540.53, 12,807.71 and 3,610.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,540.53 : 12,807.71 = 3,610.55 : x
2. Step 2: Convert to fraction form
   8,540.53/12,807.71 = 3,610.55/x
3. Step 3: Cross multiply
   8,540.53x = 12,807.71 × 3,610.55
4. Step 4: Simplify right side
   8,540.53x = 46,242,918.39
5. Step 5: Solve for x
   x = 46,242,918.39/8,540.53
6. Step 6: Final answer
   x = 5,414.53