Finding the Fourth Proportional to 31,017.72, 42,806.67 and 17,590.14

Step by Step Solution

1. Step 1: Write the proportion equation
   31,017.72 : 42,806.67 = 17,590.14 : x
2. Step 2: Convert to fraction form
   31,017.72/42,806.67 = 17,590.14/x
3. Step 3: Cross multiply
   31,017.72x = 42,806.67 × 17,590.14
4. Step 4: Simplify right side
   31,017.72x = 752,975,318.23
5. Step 5: Solve for x
   x = 752,975,318.23/31,017.72
6. Step 6: Final answer
   x = 24,275.65