Finding the Fourth Proportional to 31,118.97, 42,947.81 and 17,692.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,118.97 : 42,947.81 = 17,692.24 : x
2. Step 2: Convert to fraction form
   31,118.97/42,947.81 = 17,692.24/x
3. Step 3: Cross multiply
   31,118.97x = 42,947.81 × 17,692.24
4. Step 4: Simplify right side
   31,118.97x = 759,843,012.56
5. Step 5: Solve for x
   x = 759,843,012.56/31,118.97
6. Step 6: Final answer
   x = 24,417.35