Finding the Fourth Proportional to 16,960.38, 23,402.79 and 9,691.94

Step by Step Solution

1. Step 1: Write the proportion equation
   16,960.38 : 23,402.79 = 9,691.94 : x
2. Step 2: Convert to fraction form
   16,960.38/23,402.79 = 9,691.94/x
3. Step 3: Cross multiply
   16,960.38x = 23,402.79 × 9,691.94
4. Step 4: Simplify right side
   16,960.38x = 226,818,319.50
5. Step 5: Solve for x
   x = 226,818,319.50/16,960.38
6. Step 6: Final answer
   x = 13,373.42