Finding the Fourth Proportional to 9,294.72, 12,851.94 and 9,144.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,294.72 : 12,851.94 = 9,144.49 : x
2. Step 2: Convert to fraction form
   9,294.72/12,851.94 = 9,144.49/x
3. Step 3: Cross multiply
   9,294.72x = 12,851.94 × 9,144.49
4. Step 4: Simplify right side
   9,294.72x = 117,524,411.63
5. Step 5: Solve for x
   x = 117,524,411.63/9,294.72
6. Step 6: Final answer
   x = 12,644.22