Finding the Fourth Proportional to 5,336.82, 7,991.55 and 3,948.06

Step by Step Solution

1. Step 1: Write the proportion equation
   5,336.82 : 7,991.55 = 3,948.06 : x
2. Step 2: Convert to fraction form
   5,336.82/7,991.55 = 3,948.06/x
3. Step 3: Cross multiply
   5,336.82x = 7,991.55 × 3,948.06
4. Step 4: Simplify right side
   5,336.82x = 31,551,118.89
5. Step 5: Solve for x
   x = 31,551,118.89/5,336.82
6. Step 6: Final answer
   x = 5,911.97