Finding the Fourth Proportional to 6,290.05, 8,665.27 and 4,398.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,290.05 : 8,665.27 = 4,398.10 : x
2. Step 2: Convert to fraction form
   6,290.05/8,665.27 = 4,398.10/x
3. Step 3: Cross multiply
   6,290.05x = 8,665.27 × 4,398.10
4. Step 4: Simplify right side
   6,290.05x = 38,110,680.66
5. Step 5: Solve for x
   x = 38,110,680.66/6,290.05
6. Step 6: Final answer
   x = 6,058.88