Finding the Fourth Proportional to 11,814.72, 17,724.16 and 4,424.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,814.72 : 17,724.16 = 4,424.16 : x
2. Step 2: Convert to fraction form
   11,814.72/17,724.16 = 4,424.16/x
3. Step 3: Cross multiply
   11,814.72x = 17,724.16 × 4,424.16
4. Step 4: Simplify right side
   11,814.72x = 78,414,519.71
5. Step 5: Solve for x
   x = 78,414,519.71/11,814.72
6. Step 6: Final answer
   x = 6,637.02