Finding the Fourth Proportional to 31,072.92, 42,880.68 and 16,925.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,072.92 : 42,880.68 = 16,925.82 : x
2. Step 2: Convert to fraction form
   31,072.92/42,880.68 = 16,925.82/x
3. Step 3: Cross multiply
   31,072.92x = 42,880.68 × 16,925.82
4. Step 4: Simplify right side
   31,072.92x = 725,790,671.16
5. Step 5: Solve for x
   x = 725,790,671.16/31,072.92
6. Step 6: Final answer
   x = 23,357.66