Finding the Fourth Proportional to 5,488.29, 7,573.50 and 3,131.19

Step by Step Solution

1. Step 1: Write the proportion equation
   5,488.29 : 7,573.50 = 3,131.19 : x
2. Step 2: Convert to fraction form
   5,488.29/7,573.50 = 3,131.19/x
3. Step 3: Cross multiply
   5,488.29x = 7,573.50 × 3,131.19
4. Step 4: Simplify right side
   5,488.29x = 23,714,067.47
5. Step 5: Solve for x
   x = 23,714,067.47/5,488.29
6. Step 6: Final answer
   x = 4,320.85