Finding the Fourth Proportional to 6,361.31, 8,778.71 and 3,566.81

Step by Step Solution

1. Step 1: Write the proportion equation
   6,361.31 : 8,778.71 = 3,566.81 : x
2. Step 2: Convert to fraction form
   6,361.31/8,778.71 = 3,566.81/x
3. Step 3: Cross multiply
   6,361.31x = 8,778.71 × 3,566.81
4. Step 4: Simplify right side
   6,361.31x = 31,312,021.48
5. Step 5: Solve for x
   x = 31,312,021.48/6,361.31
6. Step 6: Final answer
   x = 4,922.26