Finding the Fourth Proportional to 31,105.76, 42,924.66 and 17,493.41

Step by Step Solution

1. Step 1: Write the proportion equation
   31,105.76 : 42,924.66 = 17,493.41 : x
2. Step 2: Convert to fraction form
   31,105.76/42,924.66 = 17,493.41/x
3. Step 3: Cross multiply
   31,105.76x = 42,924.66 × 17,493.41
4. Step 4: Simplify right side
   31,105.76x = 750,898,676.49
5. Step 5: Solve for x
   x = 750,898,676.49/31,105.76
6. Step 6: Final answer
   x = 24,140.18