Finding the Fourth Proportional to 9,098.82, 12,553.65 and 5,558.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,098.82 : 12,553.65 = 5,558.31 : x
2. Step 2: Convert to fraction form
   9,098.82/12,553.65 = 5,558.31/x
3. Step 3: Cross multiply
   9,098.82x = 12,553.65 × 5,558.31
4. Step 4: Simplify right side
   9,098.82x = 69,777,078.33
5. Step 5: Solve for x
   x = 69,777,078.33/9,098.82
6. Step 6: Final answer
   x = 7,668.81