Finding the Fourth Proportional to 14,441.72, 21,665.28 and 4,578.35

Step by Step Solution

1. Step 1: Write the proportion equation
   14,441.72 : 21,665.28 = 4,578.35 : x
2. Step 2: Convert to fraction form
   14,441.72/21,665.28 = 4,578.35/x
3. Step 3: Cross multiply
   14,441.72x = 21,665.28 × 4,578.35
4. Step 4: Simplify right side
   14,441.72x = 99,191,234.69
5. Step 5: Solve for x
   x = 99,191,234.69/14,441.72
6. Step 6: Final answer
   x = 6,868.38