Finding the Fourth Proportional to 6,274.21, 8,664.27 and 4,039.98

Step by Step Solution

1. Step 1: Write the proportion equation
   6,274.21 : 8,664.27 = 4,039.98 : x
2. Step 2: Convert to fraction form
   6,274.21/8,664.27 = 4,039.98/x
3. Step 3: Cross multiply
   6,274.21x = 8,664.27 × 4,039.98
4. Step 4: Simplify right side
   6,274.21x = 35,003,429.87
5. Step 5: Solve for x
   x = 35,003,429.87/6,274.21
6. Step 6: Final answer
   x = 5,578.94