Finding the Fourth Proportional to 11,449.16, 17,191.18 and 10,885.33

Step by Step Solution

1. Step 1: Write the proportion equation
   11,449.16 : 17,191.18 = 10,885.33 : x
2. Step 2: Convert to fraction form
   11,449.16/17,191.18 = 10,885.33/x
3. Step 3: Cross multiply
   11,449.16x = 17,191.18 × 10,885.33
4. Step 4: Simplify right side
   11,449.16x = 187,131,623.52
5. Step 5: Solve for x
   x = 187,131,623.52/11,449.16
6. Step 6: Final answer
   x = 16,344.57