Finding the Fourth Proportional to 6,208.78, 8,567.67 and 3,556.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,208.78 : 8,567.67 = 3,556.12 : x
2. Step 2: Convert to fraction form
   6,208.78/8,567.67 = 3,556.12/x
3. Step 3: Cross multiply
   6,208.78x = 8,567.67 × 3,556.12
4. Step 4: Simplify right side
   6,208.78x = 30,467,662.64
5. Step 5: Solve for x
   x = 30,467,662.64/6,208.78
6. Step 6: Final answer
   x = 4,907.19