Finding the Fourth Proportional to 7,984.56, 12,036.69 and 7,449.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,984.56 : 12,036.69 = 7,449.42 : x
2. Step 2: Convert to fraction form
   7,984.56/12,036.69 = 7,449.42/x
3. Step 3: Cross multiply
   7,984.56x = 12,036.69 × 7,449.42
4. Step 4: Simplify right side
   7,984.56x = 89,666,359.22
5. Step 5: Solve for x
   x = 89,666,359.22/7,984.56
6. Step 6: Final answer
   x = 11,229.97