Finding the Fourth Proportional to 14,016.30, 19,342.42 and 7,728.67

Step by Step Solution

1. Step 1: Write the proportion equation
   14,016.30 : 19,342.42 = 7,728.67 : x
2. Step 2: Convert to fraction form
   14,016.30/19,342.42 = 7,728.67/x
3. Step 3: Cross multiply
   14,016.30x = 19,342.42 × 7,728.67
4. Step 4: Simplify right side
   14,016.30x = 149,491,181.18
5. Step 5: Solve for x
   x = 149,491,181.18/14,016.30
6. Step 6: Final answer
   x = 10,665.52