Finding the Fourth Proportional to 31,049.40, 42,825.06 and 19,709.04

Step by Step Solution

1. Step 1: Write the proportion equation
   31,049.40 : 42,825.06 = 19,709.04 : x
2. Step 2: Convert to fraction form
   31,049.40/42,825.06 = 19,709.04/x
3. Step 3: Cross multiply
   31,049.40x = 42,825.06 × 19,709.04
4. Step 4: Simplify right side
   31,049.40x = 844,040,820.54
5. Step 5: Solve for x
   x = 844,040,820.54/31,049.40
6. Step 6: Final answer
   x = 27,183.80