Finding the Fourth Proportional to 11,819.28, 16,311.12 and 7,574.04

Step by Step Solution

1. Step 1: Write the proportion equation
   11,819.28 : 16,311.12 = 7,574.04 : x
2. Step 2: Convert to fraction form
   11,819.28/16,311.12 = 7,574.04/x
3. Step 3: Cross multiply
   11,819.28x = 16,311.12 × 7,574.04
4. Step 4: Simplify right side
   11,819.28x = 123,541,075.32
5. Step 5: Solve for x
   x = 123,541,075.32/11,819.28
6. Step 6: Final answer
   x = 10,452.50