Finding the Fourth Proportional to 13,016.61, 17,949.50 and 11,134.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,016.61 : 17,949.50 = 11,134.42 : x
2. Step 2: Convert to fraction form
   13,016.61/17,949.50 = 11,134.42/x
3. Step 3: Cross multiply
   13,016.61x = 17,949.50 × 11,134.42
4. Step 4: Simplify right side
   13,016.61x = 199,857,271.79
5. Step 5: Solve for x
   x = 199,857,271.79/13,016.61
6. Step 6: Final answer
   x = 15,354.02