Finding the Fourth Proportional to 6,991.82, 9,648.51 and 3,847.94

Step by Step Solution

1. Step 1: Write the proportion equation
   6,991.82 : 9,648.51 = 3,847.94 : x
2. Step 2: Convert to fraction form
   6,991.82/9,648.51 = 3,847.94/x
3. Step 3: Cross multiply
   6,991.82x = 9,648.51 × 3,847.94
4. Step 4: Simplify right side
   6,991.82x = 37,126,887.57
5. Step 5: Solve for x
   x = 37,126,887.57/6,991.82
6. Step 6: Final answer
   x = 5,310.05