Finding the Fourth Proportional to 31,151.25, 42,988.68 and 17,004.09

Step by Step Solution

1. Step 1: Write the proportion equation
   31,151.25 : 42,988.68 = 17,004.09 : x
2. Step 2: Convert to fraction form
   31,151.25/42,988.68 = 17,004.09/x
3. Step 3: Cross multiply
   31,151.25x = 42,988.68 × 17,004.09
4. Step 4: Simplify right side
   31,151.25x = 730,983,383.70
5. Step 5: Solve for x
   x = 730,983,383.70/31,151.25
6. Step 6: Final answer
   x = 23,465.62