Finding the Fourth Proportional to 14,016.57, 19,342.76 and 7,728.95

Step by Step Solution

1. Step 1: Write the proportion equation
   14,016.57 : 19,342.76 = 7,728.95 : x
2. Step 2: Convert to fraction form
   14,016.57/19,342.76 = 7,728.95/x
3. Step 3: Cross multiply
   14,016.57x = 19,342.76 × 7,728.95
4. Step 4: Simplify right side
   14,016.57x = 149,499,089.54
5. Step 5: Solve for x
   x = 149,499,089.54/14,016.57
6. Step 6: Final answer
   x = 10,665.88