Finding the Fourth Proportional to 11,684.50, 17,442.02 and 10,817.29

Step by Step Solution

1. Step 1: Write the proportion equation
   11,684.50 : 17,442.02 = 10,817.29 : x
2. Step 2: Convert to fraction form
   11,684.50/17,442.02 = 10,817.29/x
3. Step 3: Cross multiply
   11,684.50x = 17,442.02 × 10,817.29
4. Step 4: Simplify right side
   11,684.50x = 188,675,388.53
5. Step 5: Solve for x
   x = 188,675,388.53/11,684.50
6. Step 6: Final answer
   x = 16,147.49