Finding the Fourth Proportional to 21,936.24, 30,271.56 and 12,000.24

Step by Step Solution

1. Step 1: Write the proportion equation
   21,936.24 : 30,271.56 = 12,000.24 : x
2. Step 2: Convert to fraction form
   21,936.24/30,271.56 = 12,000.24/x
3. Step 3: Cross multiply
   21,936.24x = 30,271.56 × 12,000.24
4. Step 4: Simplify right side
   21,936.24x = 363,265,985.17
5. Step 5: Solve for x
   x = 363,265,985.17/21,936.24
6. Step 6: Final answer
   x = 16,560.08