Finding the Fourth Proportional to 22,471.92, 31,010.58 and 13,040.01

Step by Step Solution

1. Step 1: Write the proportion equation
   22,471.92 : 31,010.58 = 13,040.01 : x
2. Step 2: Convert to fraction form
   22,471.92/31,010.58 = 13,040.01/x
3. Step 3: Cross multiply
   22,471.92x = 31,010.58 × 13,040.01
4. Step 4: Simplify right side
   22,471.92x = 404,378,273.31
5. Step 5: Solve for x
   x = 404,378,273.31/22,471.92
6. Step 6: Final answer
   x = 17,994.83