Finding the Fourth Proportional to 31,072.52, 42,880.20 and 16,925.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,072.52 : 42,880.20 = 16,925.24 : x
2. Step 2: Convert to fraction form
   31,072.52/42,880.20 = 16,925.24/x
3. Step 3: Cross multiply
   31,072.52x = 42,880.20 × 16,925.24
4. Step 4: Simplify right side
   31,072.52x = 725,757,676.25
5. Step 5: Solve for x
   x = 725,757,676.25/31,072.52
6. Step 6: Final answer
   x = 23,356.90