Finding the Fourth Proportional to 9,867.92, 13,617.48 and 5,676.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,867.92 : 13,617.48 = 5,676.56 : x
2. Step 2: Convert to fraction form
   9,867.92/13,617.48 = 5,676.56/x
3. Step 3: Cross multiply
   9,867.92x = 13,617.48 × 5,676.56
4. Step 4: Simplify right side
   9,867.92x = 77,300,442.27
5. Step 5: Solve for x
   x = 77,300,442.27/9,867.92
6. Step 6: Final answer
   x = 7,833.51