Finding the Fourth Proportional to 16,535.52, 24,772 and 12,819.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,535.52 : 24,772 = 12,819.56 : x
2. Step 2: Convert to fraction form
   16,535.52/24,772 = 12,819.56/x
3. Step 3: Cross multiply
   16,535.52x = 24,772 × 12,819.56
4. Step 4: Simplify right side
   16,535.52x = 317,566,140.32
5. Step 5: Solve for x
   x = 317,566,140.32/16,535.52
6. Step 6: Final answer
   x = 19,205.09