Finding the Fourth Proportional to 23,186.50, 31,997.37 and 13,250.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,186.50 : 31,997.37 = 13,250.50 : x
2. Step 2: Convert to fraction form
   23,186.50/31,997.37 = 13,250.50/x
3. Step 3: Cross multiply
   23,186.50x = 31,997.37 × 13,250.50
4. Step 4: Simplify right side
   23,186.50x = 423,981,151.19
5. Step 5: Solve for x
   x = 423,981,151.19/23,186.50
6. Step 6: Final answer
   x = 18,285.69