Finding the Fourth Proportional to 23,928.50, 33,021.33 and 13,992.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,928.50 : 33,021.33 = 13,992.50 : x
2. Step 2: Convert to fraction form
   23,928.50/33,021.33 = 13,992.50/x
3. Step 3: Cross multiply
   23,928.50x = 33,021.33 × 13,992.50
4. Step 4: Simplify right side
   23,928.50x = 462,050,960.03
5. Step 5: Solve for x
   x = 462,050,960.03/23,928.50
6. Step 6: Final answer
   x = 19,309.65