Finding the Fourth Proportional to 31,116.82, 42,943.78 and 17,692.30

Step by Step Solution

1. Step 1: Write the proportion equation
   31,116.82 : 42,943.78 = 17,692.30 : x
2. Step 2: Convert to fraction form
   31,116.82/42,943.78 = 17,692.30/x
3. Step 3: Cross multiply
   31,116.82x = 42,943.78 × 17,692.30
4. Step 4: Simplify right side
   31,116.82x = 759,774,238.89
5. Step 5: Solve for x
   x = 759,774,238.89/31,116.82
6. Step 6: Final answer
   x = 24,416.83