Finding the Fourth Proportional to 11,214.72, 16,824.24 and 3,819.60

Step by Step Solution

1. Step 1: Write the proportion equation
   11,214.72 : 16,824.24 = 3,819.60 : x
2. Step 2: Convert to fraction form
   11,214.72/16,824.24 = 3,819.60/x
3. Step 3: Cross multiply
   11,214.72x = 16,824.24 × 3,819.60
4. Step 4: Simplify right side
   11,214.72x = 64,261,867.10
5. Step 5: Solve for x
   x = 64,261,867.10/11,214.72
6. Step 6: Final answer
   x = 5,730.14