Finding the Fourth Proportional to 31,513.49, 43,488.05 and 17,173.45

Step by Step Solution

1. Step 1: Write the proportion equation
   31,513.49 : 43,488.05 = 17,173.45 : x
2. Step 2: Convert to fraction form
   31,513.49/43,488.05 = 17,173.45/x
3. Step 3: Cross multiply
   31,513.49x = 43,488.05 × 17,173.45
4. Step 4: Simplify right side
   31,513.49x = 746,839,786.49
5. Step 5: Solve for x
   x = 746,839,786.49/31,513.49
6. Step 6: Final answer
   x = 23,699.05