Finding the Fourth Proportional to 31,123.33, 42,950.71 and 16,976.17

Step by Step Solution

1. Step 1: Write the proportion equation
   31,123.33 : 42,950.71 = 16,976.17 : x
2. Step 2: Convert to fraction form
   31,123.33/42,950.71 = 16,976.17/x
3. Step 3: Cross multiply
   31,123.33x = 42,950.71 × 16,976.17
4. Step 4: Simplify right side
   31,123.33x = 729,138,554.58
5. Step 5: Solve for x
   x = 729,138,554.58/31,123.33
6. Step 6: Final answer
   x = 23,427.40