Finding the Fourth Proportional to 31,136.63, 42,969.50 and 17,709.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,136.63 : 42,969.50 = 17,709.82 : x
2. Step 2: Convert to fraction form
   31,136.63/42,969.50 = 17,709.82/x
3. Step 3: Cross multiply
   31,136.63x = 42,969.50 × 17,709.82
4. Step 4: Simplify right side
   31,136.63x = 760,982,078.92
5. Step 5: Solve for x
   x = 760,982,078.92/31,136.63
6. Step 6: Final answer
   x = 24,440.09