Finding the Fourth Proportional to 17,145.12, 23,647.56 and 12,104.09

Step by Step Solution

1. Step 1: Write the proportion equation
   17,145.12 : 23,647.56 = 12,104.09 : x
2. Step 2: Convert to fraction form
   17,145.12/23,647.56 = 12,104.09/x
3. Step 3: Cross multiply
   17,145.12x = 23,647.56 × 12,104.09
4. Step 4: Simplify right side
   17,145.12x = 286,232,076.28
5. Step 5: Solve for x
   x = 286,232,076.28/17,145.12
6. Step 6: Final answer
   x = 16,694.67