Finding the Fourth Proportional to 12,471.95, 17,206.78 and 9,601.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,471.95 : 17,206.78 = 9,601.56 : x
2. Step 2: Convert to fraction form
   12,471.95/17,206.78 = 9,601.56/x
3. Step 3: Cross multiply
   12,471.95x = 17,206.78 × 9,601.56
4. Step 4: Simplify right side
   12,471.95x = 165,211,940.89
5. Step 5: Solve for x
   x = 165,211,940.89/12,471.95
6. Step 6: Final answer
   x = 13,246.68