Finding the Fourth Proportional to 11,919, 16,448.22 and 7,727.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,919 : 16,448.22 = 7,727.25 : x
2. Step 2: Convert to fraction form
   11,919/16,448.22 = 7,727.25/x
3. Step 3: Cross multiply
   11,919x = 16,448.22 × 7,727.25
4. Step 4: Simplify right side
   11,919x = 127,099,508.00
5. Step 5: Solve for x
   x = 127,099,508.00/11,919
6. Step 6: Final answer
   x = 10,663.61