Finding the Fourth Proportional to 6,361.69, 9,542.42 and 1,979.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,361.69 : 9,542.42 = 1,979.15 : x
2. Step 2: Convert to fraction form
   6,361.69/9,542.42 = 1,979.15/x
3. Step 3: Cross multiply
   6,361.69x = 9,542.42 × 1,979.15
4. Step 4: Simplify right side
   6,361.69x = 18,885,880.54
5. Step 5: Solve for x
   x = 18,885,880.54/6,361.69
6. Step 6: Final answer
   x = 2,968.69