Finding the Fourth Proportional to 12,481.12, 17,226.89 and 7,179

Step by Step Solution

1. Step 1: Write the proportion equation
   12,481.12 : 17,226.89 = 7,179 : x
2. Step 2: Convert to fraction form
   12,481.12/17,226.89 = 7,179/x
3. Step 3: Cross multiply
   12,481.12x = 17,226.89 × 7,179
4. Step 4: Simplify right side
   12,481.12x = 123,671,843.31
5. Step 5: Solve for x
   x = 123,671,843.31/12,481.12
6. Step 6: Final answer
   x = 9,908.71