Finding the Fourth Proportional to 23,160.72, 31,961.72 and 12,550.33

Step by Step Solution

1. Step 1: Write the proportion equation
   23,160.72 : 31,961.72 = 12,550.33 : x
2. Step 2: Convert to fraction form
   23,160.72/31,961.72 = 12,550.33/x
3. Step 3: Cross multiply
   23,160.72x = 31,961.72 × 12,550.33
4. Step 4: Simplify right side
   23,160.72x = 401,130,133.37
5. Step 5: Solve for x
   x = 401,130,133.37/23,160.72
6. Step 6: Final answer
   x = 17,319.42