Finding the Fourth Proportional to 8,036.57, 12,055.43 and 2,489.21

Step by Step Solution

1. Step 1: Write the proportion equation
   8,036.57 : 12,055.43 = 2,489.21 : x
2. Step 2: Convert to fraction form
   8,036.57/12,055.43 = 2,489.21/x
3. Step 3: Cross multiply
   8,036.57x = 12,055.43 × 2,489.21
4. Step 4: Simplify right side
   8,036.57x = 30,008,442.86
5. Step 5: Solve for x
   x = 30,008,442.86/8,036.57
6. Step 6: Final answer
   x = 3,733.99