Finding the Fourth Proportional to 31,339.89, 43,249.05 and 17,192.79

Step by Step Solution

1. Step 1: Write the proportion equation
   31,339.89 : 43,249.05 = 17,192.79 : x
2. Step 2: Convert to fraction form
   31,339.89/43,249.05 = 17,192.79/x
3. Step 3: Cross multiply
   31,339.89x = 43,249.05 × 17,192.79
4. Step 4: Simplify right side
   31,339.89x = 743,571,834.35
5. Step 5: Solve for x
   x = 743,571,834.35/31,339.89
6. Step 6: Final answer
   x = 23,726.05