Finding the Fourth Proportional to 31,044.21, 42,849.25 and 19,117.54

Step by Step Solution

1. Step 1: Write the proportion equation
   31,044.21 : 42,849.25 = 19,117.54 : x
2. Step 2: Convert to fraction form
   31,044.21/42,849.25 = 19,117.54/x
3. Step 3: Cross multiply
   31,044.21x = 42,849.25 × 19,117.54
4. Step 4: Simplify right side
   31,044.21x = 819,172,250.85
5. Step 5: Solve for x
   x = 819,172,250.85/31,044.21
6. Step 6: Final answer
   x = 26,387.28