Finding the Fourth Proportional to 31,018.37, 42,804.45 and 17,590.86

Step by Step Solution

1. Step 1: Write the proportion equation
   31,018.37 : 42,804.45 = 17,590.86 : x
2. Step 2: Convert to fraction form
   31,018.37/42,804.45 = 17,590.86/x
3. Step 3: Cross multiply
   31,018.37x = 42,804.45 × 17,590.86
4. Step 4: Simplify right side
   31,018.37x = 752,967,087.33
5. Step 5: Solve for x
   x = 752,967,087.33/31,018.37
6. Step 6: Final answer
   x = 24,274.88