Finding the Fourth Proportional to 5,799.50, 8,003.31 and 3,315.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,799.50 : 8,003.31 = 3,315.50 : x
2. Step 2: Convert to fraction form
   5,799.50/8,003.31 = 3,315.50/x
3. Step 3: Cross multiply
   5,799.50x = 8,003.31 × 3,315.50
4. Step 4: Simplify right side
   5,799.50x = 26,534,974.31
5. Step 5: Solve for x
   x = 26,534,974.31/5,799.50
6. Step 6: Final answer
   x = 4,575.39