Finding the Fourth Proportional to 6,786.45, 9,369.89 and 4,238.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,786.45 : 9,369.89 = 4,238.10 : x
2. Step 2: Convert to fraction form
   6,786.45/9,369.89 = 4,238.10/x
3. Step 3: Cross multiply
   6,786.45x = 9,369.89 × 4,238.10
4. Step 4: Simplify right side
   6,786.45x = 39,710,530.81
5. Step 5: Solve for x
   x = 39,710,530.81/6,786.45
6. Step 6: Final answer
   x = 5,851.44