Finding the Fourth Proportional to 17,362.80, 23,960.52 and 9,405

Step by Step Solution

1. Step 1: Write the proportion equation
   17,362.80 : 23,960.52 = 9,405 : x
2. Step 2: Convert to fraction form
   17,362.80/23,960.52 = 9,405/x
3. Step 3: Cross multiply
   17,362.80x = 23,960.52 × 9,405
4. Step 4: Simplify right side
   17,362.80x = 225,348,690.60
5. Step 5: Solve for x
   x = 225,348,690.60/17,362.80
6. Step 6: Final answer
   x = 12,978.82