Finding the Fourth Proportional to 31,983.20, 44,144.73 and 21,791.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,983.20 : 44,144.73 = 21,791.10 : x
2. Step 2: Convert to fraction form
   31,983.20/44,144.73 = 21,791.10/x
3. Step 3: Cross multiply
   31,983.20x = 44,144.73 × 21,791.10
4. Step 4: Simplify right side
   31,983.20x = 961,962,225.90
5. Step 5: Solve for x
   x = 961,962,225.90/31,983.20
6. Step 6: Final answer
   x = 30,077.11