Finding the Fourth Proportional to 31,706.78, 43,754.81 and 17,559.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,706.78 : 43,754.81 = 17,559.32 : x
2. Step 2: Convert to fraction form
   31,706.78/43,754.81 = 17,559.32/x
3. Step 3: Cross multiply
   31,706.78x = 43,754.81 × 17,559.32
4. Step 4: Simplify right side
   31,706.78x = 768,304,403.76
5. Step 5: Solve for x
   x = 768,304,403.76/31,706.78
6. Step 6: Final answer
   x = 24,231.55