Finding the Fourth Proportional to 5,289.98, 7,935.56 and 3,098.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,289.98 : 7,935.56 = 3,098.72 : x
2. Step 2: Convert to fraction form
   5,289.98/7,935.56 = 3,098.72/x
3. Step 3: Cross multiply
   5,289.98x = 7,935.56 × 3,098.72
4. Step 4: Simplify right side
   5,289.98x = 24,590,078.48
5. Step 5: Solve for x
   x = 24,590,078.48/5,289.98
6. Step 6: Final answer
   x = 4,648.43