Finding the Fourth Proportional to 12,324.12, 17,007.72 and 7,019.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,324.12 : 17,007.72 = 7,019.76 : x
2. Step 2: Convert to fraction form
   12,324.12/17,007.72 = 7,019.76/x
3. Step 3: Cross multiply
   12,324.12x = 17,007.72 × 7,019.76
4. Step 4: Simplify right side
   12,324.12x = 119,390,112.55
5. Step 5: Solve for x
   x = 119,390,112.55/12,324.12
6. Step 6: Final answer
   x = 9,687.52