Finding the Fourth Proportional to 23,173.59, 31,979.56 and 12,563.23

Step by Step Solution

1. Step 1: Write the proportion equation
   23,173.59 : 31,979.56 = 12,563.23 : x
2. Step 2: Convert to fraction form
   23,173.59/31,979.56 = 12,563.23/x
3. Step 3: Cross multiply
   23,173.59x = 31,979.56 × 12,563.23
4. Step 4: Simplify right side
   23,173.59x = 401,766,449.80
5. Step 5: Solve for x
   x = 401,766,449.80/23,173.59
6. Step 6: Final answer
   x = 17,337.25