Finding the Fourth Proportional to 31,136.09, 42,968.75 and 17,709.27

Step by Step Solution

1. Step 1: Write the proportion equation
   31,136.09 : 42,968.75 = 17,709.27 : x
2. Step 2: Convert to fraction form
   31,136.09/42,968.75 = 17,709.27/x
3. Step 3: Cross multiply
   31,136.09x = 42,968.75 × 17,709.27
4. Step 4: Simplify right side
   31,136.09x = 760,945,187.33
5. Step 5: Solve for x
   x = 760,945,187.33/31,136.09
6. Step 6: Final answer
   x = 24,439.33