Finding the Fourth Proportional to 31,059.54, 42,863.34 and 17,631.36

Step by Step Solution

1. Step 1: Write the proportion equation
   31,059.54 : 42,863.34 = 17,631.36 : x
2. Step 2: Convert to fraction form
   31,059.54/42,863.34 = 17,631.36/x
3. Step 3: Cross multiply
   31,059.54x = 42,863.34 × 17,631.36
4. Step 4: Simplify right side
   31,059.54x = 755,738,978.34
5. Step 5: Solve for x
   x = 755,738,978.34/31,059.54
6. Step 6: Final answer
   x = 24,331.94