Finding the Fourth Proportional to 6,458.82, 8,912.82 and 3,587.40

Step by Step Solution

1. Step 1: Write the proportion equation
   6,458.82 : 8,912.82 = 3,587.40 : x
2. Step 2: Convert to fraction form
   6,458.82/8,912.82 = 3,587.40/x
3. Step 3: Cross multiply
   6,458.82x = 8,912.82 × 3,587.40
4. Step 4: Simplify right side
   6,458.82x = 31,973,850.47
5. Step 5: Solve for x
   x = 31,973,850.47/6,458.82
6. Step 6: Final answer
   x = 4,950.42