Finding the Fourth Proportional to 31,074.28, 42,882.12 and 16,926.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,074.28 : 42,882.12 = 16,926.82 : x
2. Step 2: Convert to fraction form
   31,074.28/42,882.12 = 16,926.82/x
3. Step 3: Cross multiply
   31,074.28x = 42,882.12 × 16,926.82
4. Step 4: Simplify right side
   31,074.28x = 725,857,926.46
5. Step 5: Solve for x
   x = 725,857,926.46/31,074.28
6. Step 6: Final answer
   x = 23,358.80