Finding the Fourth Proportional to 10,819.50, 16,229.28 and 3,894

Step by Step Solution

1. Step 1: Write the proportion equation
   10,819.50 : 16,229.28 = 3,894 : x
2. Step 2: Convert to fraction form
   10,819.50/16,229.28 = 3,894/x
3. Step 3: Cross multiply
   10,819.50x = 16,229.28 × 3,894
4. Step 4: Simplify right side
   10,819.50x = 63,196,816.32
5. Step 5: Solve for x
   x = 63,196,816.32/10,819.50
6. Step 6: Final answer
   x = 5,841.01