Finding the Fourth Proportional to 17,377.80, 23,981.46 and 9,419.97

Step by Step Solution

1. Step 1: Write the proportion equation
   17,377.80 : 23,981.46 = 9,419.97 : x
2. Step 2: Convert to fraction form
   17,377.80/23,981.46 = 9,419.97/x
3. Step 3: Cross multiply
   17,377.80x = 23,981.46 × 9,419.97
4. Step 4: Simplify right side
   17,377.80x = 225,904,633.76
5. Step 5: Solve for x
   x = 225,904,633.76/17,377.80
6. Step 6: Final answer
   x = 12,999.61