Finding the Fourth Proportional to 31,019.10, 42,805.59 and 17,590.38

Step by Step Solution

1. Step 1: Write the proportion equation
   31,019.10 : 42,805.59 = 17,590.38 : x
2. Step 2: Convert to fraction form
   31,019.10/42,805.59 = 17,590.38/x
3. Step 3: Cross multiply
   31,019.10x = 42,805.59 × 17,590.38
4. Step 4: Simplify right side
   31,019.10x = 752,966,594.22
5. Step 5: Solve for x
   x = 752,966,594.22/31,019.10
6. Step 6: Final answer
   x = 24,274.29