Finding the Fourth Proportional to 31,018.12, 42,805.49 and 17,589.09

Step by Step Solution

1. Step 1: Write the proportion equation
   31,018.12 : 42,805.49 = 17,589.09 : x
2. Step 2: Convert to fraction form
   31,018.12/42,805.49 = 17,589.09/x
3. Step 3: Cross multiply
   31,018.12x = 42,805.49 × 17,589.09
4. Step 4: Simplify right side
   31,018.12x = 752,909,528.16
5. Step 5: Solve for x
   x = 752,909,528.16/31,018.12
6. Step 6: Final answer
   x = 24,273.22