Finding the Fourth Proportional to 12,433.57, 17,145.43 and 9,601.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,433.57 : 17,145.43 = 9,601.40 : x
2. Step 2: Convert to fraction form
   12,433.57/17,145.43 = 9,601.40/x
3. Step 3: Cross multiply
   12,433.57x = 17,145.43 × 9,601.40
4. Step 4: Simplify right side
   12,433.57x = 164,620,150.46
5. Step 5: Solve for x
   x = 164,620,150.46/12,433.57
6. Step 6: Final answer
   x = 13,239.98