Finding the Fourth Proportional to 6,379.23, 8,806.32 and 4,258.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,379.23 : 8,806.32 = 4,258.34 : x
2. Step 2: Convert to fraction form
   6,379.23/8,806.32 = 4,258.34/x
3. Step 3: Cross multiply
   6,379.23x = 8,806.32 × 4,258.34
4. Step 4: Simplify right side
   6,379.23x = 37,500,304.71
5. Step 5: Solve for x
   x = 37,500,304.71/6,379.23
6. Step 6: Final answer
   x = 5,878.50