Finding the Fourth Proportional to 6,786.84, 9,365.54 and 3,954.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,786.84 : 9,365.54 = 3,954.30 : x
2. Step 2: Convert to fraction form
   6,786.84/9,365.54 = 3,954.30/x
3. Step 3: Cross multiply
   6,786.84x = 9,365.54 × 3,954.30
4. Step 4: Simplify right side
   6,786.84x = 37,034,154.82
5. Step 5: Solve for x
   x = 37,034,154.82/6,786.84
6. Step 6: Final answer
   x = 5,456.76