Finding the Fourth Proportional to 6,987.36, 9,642.42 and 3,843.48

Step by Step Solution

1. Step 1: Write the proportion equation
   6,987.36 : 9,642.42 = 3,843.48 : x
2. Step 2: Convert to fraction form
   6,987.36/9,642.42 = 3,843.48/x
3. Step 3: Cross multiply
   6,987.36x = 9,642.42 × 3,843.48
4. Step 4: Simplify right side
   6,987.36x = 37,060,448.42
5. Step 5: Solve for x
   x = 37,060,448.42/6,987.36
6. Step 6: Final answer
   x = 5,303.93