Finding the Fourth Proportional to 31,057.81, 42,860.81 and 17,448.23

Step by Step Solution

1. Step 1: Write the proportion equation
   31,057.81 : 42,860.81 = 17,448.23 : x
2. Step 2: Convert to fraction form
   31,057.81/42,860.81 = 17,448.23/x
3. Step 3: Cross multiply
   31,057.81x = 42,860.81 × 17,448.23
4. Step 4: Simplify right side
   31,057.81x = 747,845,270.87
5. Step 5: Solve for x
   x = 747,845,270.87/31,057.81
6. Step 6: Final answer
   x = 24,079.14