Finding the Fourth Proportional to 16,019.28, 23,996.70 and 7,989.84

Step by Step Solution

1. Step 1: Write the proportion equation
   16,019.28 : 23,996.70 = 7,989.84 : x
2. Step 2: Convert to fraction form
   16,019.28/23,996.70 = 7,989.84/x
3. Step 3: Cross multiply
   16,019.28x = 23,996.70 × 7,989.84
4. Step 4: Simplify right side
   16,019.28x = 191,729,793.53
5. Step 5: Solve for x
   x = 191,729,793.53/16,019.28
6. Step 6: Final answer
   x = 11,968.69