Finding the Fourth Proportional to 12,960.54, 17,885.57 and 7,295.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,960.54 : 17,885.57 = 7,295.61 : x
2. Step 2: Convert to fraction form
   12,960.54/17,885.57 = 7,295.61/x
3. Step 3: Cross multiply
   12,960.54x = 17,885.57 × 7,295.61
4. Step 4: Simplify right side
   12,960.54x = 130,486,143.35
5. Step 5: Solve for x
   x = 130,486,143.35/12,960.54
6. Step 6: Final answer
   x = 10,067.96