Finding the Fourth Proportional to 5,556.72, 8,287.98 and 4,684.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,556.72 : 8,287.98 = 4,684.98 : x
2. Step 2: Convert to fraction form
   5,556.72/8,287.98 = 4,684.98/x
3. Step 3: Cross multiply
   5,556.72x = 8,287.98 × 4,684.98
4. Step 4: Simplify right side
   5,556.72x = 38,829,020.54
5. Step 5: Solve for x
   x = 38,829,020.54/5,556.72
6. Step 6: Final answer
   x = 6,987.76