Finding the Fourth Proportional to 6,863.69, 9,465.78 and 5,351.63

Step by Step Solution

1. Step 1: Write the proportion equation
   6,863.69 : 9,465.78 = 5,351.63 : x
2. Step 2: Convert to fraction form
   6,863.69/9,465.78 = 5,351.63/x
3. Step 3: Cross multiply
   6,863.69x = 9,465.78 × 5,351.63
4. Step 4: Simplify right side
   6,863.69x = 50,657,304.89
5. Step 5: Solve for x
   x = 50,657,304.89/6,863.69
6. Step 6: Final answer
   x = 7,380.47