Finding the Fourth Proportional to 12,984.07, 17,919.35 and 7,951.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,984.07 : 17,919.35 = 7,951.62 : x
2. Step 2: Convert to fraction form
   12,984.07/17,919.35 = 7,951.62/x
3. Step 3: Cross multiply
   12,984.07x = 17,919.35 × 7,951.62
4. Step 4: Simplify right side
   12,984.07x = 142,487,861.85
5. Step 5: Solve for x
   x = 142,487,861.85/12,984.07
6. Step 6: Final answer
   x = 10,974.05