Finding the Fourth Proportional to 12,662.22, 17,321.99 and 12,608.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,662.22 : 17,321.99 = 12,608.92 : x
2. Step 2: Convert to fraction form
   12,662.22/17,321.99 = 12,608.92/x
3. Step 3: Cross multiply
   12,662.22x = 17,321.99 × 12,608.92
4. Step 4: Simplify right side
   12,662.22x = 218,411,586.15
5. Step 5: Solve for x
   x = 218,411,586.15/12,662.22
6. Step 6: Final answer
   x = 17,249.08