Finding the Fourth Proportional to 17,364.72, 23,952.48 and 12,822.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,364.72 : 23,952.48 = 12,822.78 : x
2. Step 2: Convert to fraction form
   17,364.72/23,952.48 = 12,822.78/x
3. Step 3: Cross multiply
   17,364.72x = 23,952.48 × 12,822.78
4. Step 4: Simplify right side
   17,364.72x = 307,137,381.49
5. Step 5: Solve for x
   x = 307,137,381.49/17,364.72
6. Step 6: Final answer
   x = 17,687.44