Finding the Fourth Proportional to 8,949.63, 13,429.89 and 5,658.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,949.63 : 13,429.89 = 5,658.18 : x
2. Step 2: Convert to fraction form
   8,949.63/13,429.89 = 5,658.18/x
3. Step 3: Cross multiply
   8,949.63x = 13,429.89 × 5,658.18
4. Step 4: Simplify right side
   8,949.63x = 75,988,735.00
5. Step 5: Solve for x
   x = 75,988,735.00/8,949.63
6. Step 6: Final answer
   x = 8,490.71