Finding the Fourth Proportional to 16,974.54, 23,422.71 and 9,419.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,974.54 : 23,422.71 = 9,419.82 : x
2. Step 2: Convert to fraction form
   16,974.54/23,422.71 = 9,419.82/x
3. Step 3: Cross multiply
   16,974.54x = 23,422.71 × 9,419.82
4. Step 4: Simplify right side
   16,974.54x = 220,637,718.85
5. Step 5: Solve for x
   x = 220,637,718.85/16,974.54
6. Step 6: Final answer
   x = 12,998.16