Finding the Fourth Proportional to 16,942, 23,379.96 and 9,490

Step by Step Solution

1. Step 1: Write the proportion equation
   16,942 : 23,379.96 = 9,490 : x
2. Step 2: Convert to fraction form
   16,942/23,379.96 = 9,490/x
3. Step 3: Cross multiply
   16,942x = 23,379.96 × 9,490
4. Step 4: Simplify right side
   16,942x = 221,875,820.40
5. Step 5: Solve for x
   x = 221,875,820.40/16,942
6. Step 6: Final answer
   x = 13,096.20