Finding the Fourth Proportional to 50,928, 76,422.72 and 21,744

Step by Step Solution

1. Step 1: Write the proportion equation
   50,928 : 76,422.72 = 21,744 : x
2. Step 2: Convert to fraction form
   50,928/76,422.72 = 21,744/x
3. Step 3: Cross multiply
   50,928x = 76,422.72 × 21,744
4. Step 4: Simplify right side
   50,928x = 1,661,735,623.68
5. Step 5: Solve for x
   x = 1,661,735,623.68/50,928
6. Step 6: Final answer
   x = 32,629.12