Finding the Fourth Proportional to 11,315.82, 16,967.25 and 10,663.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,315.82 : 16,967.25 = 10,663.50 : x
2. Step 2: Convert to fraction form
   11,315.82/16,967.25 = 10,663.50/x
3. Step 3: Cross multiply
   11,315.82x = 16,967.25 × 10,663.50
4. Step 4: Simplify right side
   11,315.82x = 180,930,270.38
5. Step 5: Solve for x
   x = 180,930,270.38/11,315.82
6. Step 6: Final answer
   x = 15,989.14