Finding the Fourth Proportional to 8,176.98, 12,255.72 and 5,698.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,176.98 : 12,255.72 = 5,698.38 : x
2. Step 2: Convert to fraction form
   8,176.98/12,255.72 = 5,698.38/x
3. Step 3: Cross multiply
   8,176.98x = 12,255.72 × 5,698.38
4. Step 4: Simplify right side
   8,176.98x = 69,837,749.73
5. Step 5: Solve for x
   x = 69,837,749.73/8,176.98
6. Step 6: Final answer
   x = 8,540.78