Finding the Fourth Proportional to 12,481.45, 17,227.29 and 7,179.33

Step by Step Solution

1. Step 1: Write the proportion equation
   12,481.45 : 17,227.29 = 7,179.33 : x
2. Step 2: Convert to fraction form
   12,481.45/17,227.29 = 7,179.33/x
3. Step 3: Cross multiply
   12,481.45x = 17,227.29 × 7,179.33
4. Step 4: Simplify right side
   12,481.45x = 123,680,399.92
5. Step 5: Solve for x
   x = 123,680,399.92/12,481.45
6. Step 6: Final answer
   x = 9,909.14