Finding the Fourth Proportional to 12,481.62, 17,227.58 and 7,179.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,481.62 : 17,227.58 = 7,179.50 : x
2. Step 2: Convert to fraction form
   12,481.62/17,227.58 = 7,179.50/x
3. Step 3: Cross multiply
   12,481.62x = 17,227.58 × 7,179.50
4. Step 4: Simplify right side
   12,481.62x = 123,685,288.57
5. Step 5: Solve for x
   x = 123,685,288.57/12,481.62
6. Step 6: Final answer
   x = 9,909.39