Finding the Fourth Proportional to 23,144.34, 31,939.22 and 12,533.99

Step by Step Solution

1. Step 1: Write the proportion equation
   23,144.34 : 31,939.22 = 12,533.99 : x
2. Step 2: Convert to fraction form
   23,144.34/31,939.22 = 12,533.99/x
3. Step 3: Cross multiply
   23,144.34x = 31,939.22 × 12,533.99
4. Step 4: Simplify right side
   23,144.34x = 400,325,864.09
5. Step 5: Solve for x
   x = 400,325,864.09/23,144.34
6. Step 6: Final answer
   x = 17,296.92