Finding the Fourth Proportional to 6,991.27, 9,647.95 and 3,847.46

Step by Step Solution

1. Step 1: Write the proportion equation
   6,991.27 : 9,647.95 = 3,847.46 : x
2. Step 2: Convert to fraction form
   6,991.27/9,647.95 = 3,847.46/x
3. Step 3: Cross multiply
   6,991.27x = 9,647.95 × 3,847.46
4. Step 4: Simplify right side
   6,991.27x = 37,120,102.59
5. Step 5: Solve for x
   x = 37,120,102.59/6,991.27
6. Step 6: Final answer
   x = 5,309.49