Finding the Fourth Proportional to 6,786.78, 9,341.69 and 5,015.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,786.78 : 9,341.69 = 5,015.31 : x
2. Step 2: Convert to fraction form
   6,786.78/9,341.69 = 5,015.31/x
3. Step 3: Cross multiply
   6,786.78x = 9,341.69 × 5,015.31
4. Step 4: Simplify right side
   6,786.78x = 46,851,471.27
5. Step 5: Solve for x
   x = 46,851,471.27/6,786.78
6. Step 6: Final answer
   x = 6,903.34