Finding the Fourth Proportional to 16,738.88, 23,114.56 and 12,288

Step by Step Solution

1. Step 1: Write the proportion equation
   16,738.88 : 23,114.56 = 12,288 : x
2. Step 2: Convert to fraction form
   16,738.88/23,114.56 = 12,288/x
3. Step 3: Cross multiply
   16,738.88x = 23,114.56 × 12,288
4. Step 4: Simplify right side
   16,738.88x = 284,031,713.28
5. Step 5: Solve for x
   x = 284,031,713.28/16,738.88
6. Step 6: Final answer
   x = 16,968.38