Finding the Fourth Proportional to 6,369.89, 8,787.38 and 3,716.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,369.89 : 8,787.38 = 3,716.78 : x
2. Step 2: Convert to fraction form
   6,369.89/8,787.38 = 3,716.78/x
3. Step 3: Cross multiply
   6,369.89x = 8,787.38 × 3,716.78
4. Step 4: Simplify right side
   6,369.89x = 32,660,695.72
5. Step 5: Solve for x
   x = 32,660,695.72/6,369.89
6. Step 6: Final answer
   x = 5,127.36