Finding the Fourth Proportional to 31,020.54, 42,798.69 and 17,590.74

Step by Step Solution

1. Step 1: Write the proportion equation
   31,020.54 : 42,798.69 = 17,590.74 : x
2. Step 2: Convert to fraction form
   31,020.54/42,798.69 = 17,590.74/x
3. Step 3: Cross multiply
   31,020.54x = 42,798.69 × 17,590.74
4. Step 4: Simplify right side
   31,020.54x = 752,860,628.13
5. Step 5: Solve for x
   x = 752,860,628.13/31,020.54
6. Step 6: Final answer
   x = 24,269.75