Finding the Fourth Proportional to 14,658.72, 21,989.25 and 5,304.30

Step by Step Solution

1. Step 1: Write the proportion equation
   14,658.72 : 21,989.25 = 5,304.30 : x
2. Step 2: Convert to fraction form
   14,658.72/21,989.25 = 5,304.30/x
3. Step 3: Cross multiply
   14,658.72x = 21,989.25 × 5,304.30
4. Step 4: Simplify right side
   14,658.72x = 116,637,578.78
5. Step 5: Solve for x
   x = 116,637,578.78/14,658.72
6. Step 6: Final answer
   x = 7,956.87