Finding the Fourth Proportional to 10,153.43, 15,229.45 and 3,578.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,153.43 : 15,229.45 = 3,578.76 : x
2. Step 2: Convert to fraction form
   10,153.43/15,229.45 = 3,578.76/x
3. Step 3: Cross multiply
   10,153.43x = 15,229.45 × 3,578.76
4. Step 4: Simplify right side
   10,153.43x = 54,502,508.12
5. Step 5: Solve for x
   x = 54,502,508.12/10,153.43
6. Step 6: Final answer
   x = 5,367.89