Finding the Fourth Proportional to 14,016.26, 19,342.32 and 7,728.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,016.26 : 19,342.32 = 7,728.50 : x
2. Step 2: Convert to fraction form
   14,016.26/19,342.32 = 7,728.50/x
3. Step 3: Cross multiply
   14,016.26x = 19,342.32 × 7,728.50
4. Step 4: Simplify right side
   14,016.26x = 149,487,120.12
5. Step 5: Solve for x
   x = 149,487,120.12/14,016.26
6. Step 6: Final answer
   x = 10,665.26