Finding the Fourth Proportional to 12,441.03, 17,162.09 and 8,611.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,441.03 : 17,162.09 = 8,611.05 : x
2. Step 2: Convert to fraction form
   12,441.03/17,162.09 = 8,611.05/x
3. Step 3: Cross multiply
   12,441.03x = 17,162.09 × 8,611.05
4. Step 4: Simplify right side
   12,441.03x = 147,783,572.04
5. Step 5: Solve for x
   x = 147,783,572.04/12,441.03
6. Step 6: Final answer
   x = 11,878.72