Finding the Fourth Proportional to 12,441.84, 17,176.56 and 9,081.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,441.84 : 17,176.56 = 9,081.20 : x
2. Step 2: Convert to fraction form
   12,441.84/17,176.56 = 9,081.20/x
3. Step 3: Cross multiply
   12,441.84x = 17,176.56 × 9,081.20
4. Step 4: Simplify right side
   12,441.84x = 155,983,776.67
5. Step 5: Solve for x
   x = 155,983,776.67/12,441.84
6. Step 6: Final answer
   x = 12,537.03