Finding the Fourth Proportional to 16,731.34, 23,087.37 and 9,660.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,731.34 : 23,087.37 = 9,660.10 : x
2. Step 2: Convert to fraction form
   16,731.34/23,087.37 = 9,660.10/x
3. Step 3: Cross multiply
   16,731.34x = 23,087.37 × 9,660.10
4. Step 4: Simplify right side
   16,731.34x = 223,026,302.94
5. Step 5: Solve for x
   x = 223,026,302.94/16,731.34
6. Step 6: Final answer
   x = 13,329.85