Finding the Fourth Proportional to 31,834.24, 43,930.47 and 17,687.12

Step by Step Solution

1. Step 1: Write the proportion equation
   31,834.24 : 43,930.47 = 17,687.12 : x
2. Step 2: Convert to fraction form
   31,834.24/43,930.47 = 17,687.12/x
3. Step 3: Cross multiply
   31,834.24x = 43,930.47 × 17,687.12
4. Step 4: Simplify right side
   31,834.24x = 777,003,428.22
5. Step 5: Solve for x
   x = 777,003,428.22/31,834.24
6. Step 6: Final answer
   x = 24,407.79