Finding the Fourth Proportional to 31,076.52, 42,885.72 and 16,929.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,076.52 : 42,885.72 = 16,929.24 : x
2. Step 2: Convert to fraction form
   31,076.52/42,885.72 = 16,929.24/x
3. Step 3: Cross multiply
   31,076.52x = 42,885.72 × 16,929.24
4. Step 4: Simplify right side
   31,076.52x = 726,022,646.45
5. Step 5: Solve for x
   x = 726,022,646.45/31,076.52
6. Step 6: Final answer
   x = 23,362.42