Finding the Fourth Proportional to 31,036.41, 42,831.21 and 17,608.23

Step by Step Solution

1. Step 1: Write the proportion equation
   31,036.41 : 42,831.21 = 17,608.23 : x
2. Step 2: Convert to fraction form
   31,036.41/42,831.21 = 17,608.23/x
3. Step 3: Cross multiply
   31,036.41x = 42,831.21 × 17,608.23
4. Step 4: Simplify right side
   31,036.41x = 754,181,862.89
5. Step 5: Solve for x
   x = 754,181,862.89/31,036.41
6. Step 6: Final answer
   x = 24,299.91