Finding the Fourth Proportional to 31,072.41, 42,879.98 and 16,925.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,072.41 : 42,879.98 = 16,925.31 : x
2. Step 2: Convert to fraction form
   31,072.41/42,879.98 = 16,925.31/x
3. Step 3: Cross multiply
   31,072.41x = 42,879.98 × 16,925.31
4. Step 4: Simplify right side
   31,072.41x = 725,756,954.29
5. Step 5: Solve for x
   x = 725,756,954.29/31,072.41
6. Step 6: Final answer
   x = 23,356.96