Finding the Fourth Proportional to 17,377.38, 23,980.73 and 9,419.54

Step by Step Solution

1. Step 1: Write the proportion equation
   17,377.38 : 23,980.73 = 9,419.54 : x
2. Step 2: Convert to fraction form
   17,377.38/23,980.73 = 9,419.54/x
3. Step 3: Cross multiply
   17,377.38x = 23,980.73 × 9,419.54
4. Step 4: Simplify right side
   17,377.38x = 225,887,278.46
5. Step 5: Solve for x
   x = 225,887,278.46/17,377.38
6. Step 6: Final answer
   x = 12,998.93