Finding the Fourth Proportional to 6,381.69, 8,809.82 and 4,258.45

Step by Step Solution

1. Step 1: Write the proportion equation
   6,381.69 : 8,809.82 = 4,258.45 : x
2. Step 2: Convert to fraction form
   6,381.69/8,809.82 = 4,258.45/x
3. Step 3: Cross multiply
   6,381.69x = 8,809.82 × 4,258.45
4. Step 4: Simplify right side
   6,381.69x = 37,516,177.98
5. Step 5: Solve for x
   x = 37,516,177.98/6,381.69
6. Step 6: Final answer
   x = 5,878.72