Finding the Fourth Proportional to 6,780.31, 9,356.73 and 3,796.13

Step by Step Solution

1. Step 1: Write the proportion equation
   6,780.31 : 9,356.73 = 3,796.13 : x
2. Step 2: Convert to fraction form
   6,780.31/9,356.73 = 3,796.13/x
3. Step 3: Cross multiply
   6,780.31x = 9,356.73 × 3,796.13
4. Step 4: Simplify right side
   6,780.31x = 35,519,363.45
5. Step 5: Solve for x
   x = 35,519,363.45/6,780.31
6. Step 6: Final answer
   x = 5,238.60