Finding the Fourth Proportional to 31,103.88, 42,929.78 and 17,676.04

Step by Step Solution

1. Step 1: Write the proportion equation
   31,103.88 : 42,929.78 = 17,676.04 : x
2. Step 2: Convert to fraction form
   31,103.88/42,929.78 = 17,676.04/x
3. Step 3: Cross multiply
   31,103.88x = 42,929.78 × 17,676.04
4. Step 4: Simplify right side
   31,103.88x = 758,828,508.47
5. Step 5: Solve for x
   x = 758,828,508.47/31,103.88
6. Step 6: Final answer
   x = 24,396.59