Finding the Fourth Proportional to 12,951.63, 17,872.52 and 7,286.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,951.63 : 17,872.52 = 7,286.61 : x
2. Step 2: Convert to fraction form
   12,951.63/17,872.52 = 7,286.61/x
3. Step 3: Cross multiply
   12,951.63x = 17,872.52 × 7,286.61
4. Step 4: Simplify right side
   12,951.63x = 130,230,113.55
5. Step 5: Solve for x
   x = 130,230,113.55/12,951.63
6. Step 6: Final answer
   x = 10,055.12