Finding the Fourth Proportional to 14,016.50, 19,342.77 and 7,728.92

Step by Step Solution

1. Step 1: Write the proportion equation
   14,016.50 : 19,342.77 = 7,728.92 : x
2. Step 2: Convert to fraction form
   14,016.50/19,342.77 = 7,728.92/x
3. Step 3: Cross multiply
   14,016.50x = 19,342.77 × 7,728.92
4. Step 4: Simplify right side
   14,016.50x = 149,498,721.91
5. Step 5: Solve for x
   x = 149,498,721.91/14,016.50
6. Step 6: Final answer
   x = 10,665.91