Finding the Fourth Proportional to 31,027.55, 42,817.42 and 17,229.41

Step by Step Solution

1. Step 1: Write the proportion equation
   31,027.55 : 42,817.42 = 17,229.41 : x
2. Step 2: Convert to fraction form
   31,027.55/42,817.42 = 17,229.41/x
3. Step 3: Cross multiply
   31,027.55x = 42,817.42 × 17,229.41
4. Step 4: Simplify right side
   31,027.55x = 737,718,627.16
5. Step 5: Solve for x
   x = 737,718,627.16/31,027.55
6. Step 6: Final answer
   x = 23,776.25