Finding the Fourth Proportional to 31,073.41, 42,881.36 and 16,926.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,073.41 : 42,881.36 = 16,926.31 : x
2. Step 2: Convert to fraction form
   31,073.41/42,881.36 = 16,926.31/x
3. Step 3: Cross multiply
   31,073.41x = 42,881.36 × 16,926.31
4. Step 4: Simplify right side
   31,073.41x = 725,823,192.58
5. Step 5: Solve for x
   x = 725,823,192.58/31,073.41
6. Step 6: Final answer
   x = 23,358.34