Finding the Fourth Proportional to 9,738.45, 13,440.81 and 9,294.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,738.45 : 13,440.81 = 9,294.73 : x
2. Step 2: Convert to fraction form
   9,738.45/13,440.81 = 9,294.73/x
3. Step 3: Cross multiply
   9,738.45x = 13,440.81 × 9,294.73
4. Step 4: Simplify right side
   9,738.45x = 124,928,666.33
5. Step 5: Solve for x
   x = 124,928,666.33/9,738.45
6. Step 6: Final answer
   x = 12,828.39