Finding the Fourth Proportional to 31,073.78, 42,882.27 and 16,926.63

Step by Step Solution

1. Step 1: Write the proportion equation
   31,073.78 : 42,882.27 = 16,926.63 : x
2. Step 2: Convert to fraction form
   31,073.78/42,882.27 = 16,926.63/x
3. Step 3: Cross multiply
   31,073.78x = 42,882.27 × 16,926.63
4. Step 4: Simplify right side
   31,073.78x = 725,852,317.85
5. Step 5: Solve for x
   x = 725,852,317.85/31,073.78
6. Step 6: Final answer
   x = 23,359.00