Finding the Fourth Proportional to 12,362.91, 17,055.36 and 9,718.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,362.91 : 17,055.36 = 9,718.02 : x
2. Step 2: Convert to fraction form
   12,362.91/17,055.36 = 9,718.02/x
3. Step 3: Cross multiply
   12,362.91x = 17,055.36 × 9,718.02
4. Step 4: Simplify right side
   12,362.91x = 165,744,329.59
5. Step 5: Solve for x
   x = 165,744,329.59/12,362.91
6. Step 6: Final answer
   x = 13,406.58