Finding the Fourth Proportional to 5,721.45, 8,587.59 and 2,950.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,721.45 : 8,587.59 = 2,950.05 : x
2. Step 2: Convert to fraction form
   5,721.45/8,587.59 = 2,950.05/x
3. Step 3: Cross multiply
   5,721.45x = 8,587.59 × 2,950.05
4. Step 4: Simplify right side
   5,721.45x = 25,333,819.88
5. Step 5: Solve for x
   x = 25,333,819.88/5,721.45
6. Step 6: Final answer
   x = 4,427.87