Finding the Fourth Proportional to 5,556.52, 7,667.96 and 3,198.60

Step by Step Solution

1. Step 1: Write the proportion equation
   5,556.52 : 7,667.96 = 3,198.60 : x
2. Step 2: Convert to fraction form
   5,556.52/7,667.96 = 3,198.60/x
3. Step 3: Cross multiply
   5,556.52x = 7,667.96 × 3,198.60
4. Step 4: Simplify right side
   5,556.52x = 24,526,736.86
5. Step 5: Solve for x
   x = 24,526,736.86/5,556.52
6. Step 6: Final answer
   x = 4,414.05