Finding the Fourth Proportional to 17,363.34, 23,961.39 and 9,405.57

Step by Step Solution

1. Step 1: Write the proportion equation
   17,363.34 : 23,961.39 = 9,405.57 : x
2. Step 2: Convert to fraction form
   17,363.34/23,961.39 = 9,405.57/x
3. Step 3: Cross multiply
   17,363.34x = 23,961.39 × 9,405.57
4. Step 4: Simplify right side
   17,363.34x = 225,370,530.94
5. Step 5: Solve for x
   x = 225,370,530.94/17,363.34
6. Step 6: Final answer
   x = 12,979.68