Finding the Fourth Proportional to 6,189.36, 8,540.78 and 3,536.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,189.36 : 8,540.78 = 3,536.25 : x
2. Step 2: Convert to fraction form
   6,189.36/8,540.78 = 3,536.25/x
3. Step 3: Cross multiply
   6,189.36x = 8,540.78 × 3,536.25
4. Step 4: Simplify right side
   6,189.36x = 30,202,333.28
5. Step 5: Solve for x
   x = 30,202,333.28/6,189.36
6. Step 6: Final answer
   x = 4,879.72