Finding the Fourth Proportional to 6,443.08, 8,893.60 and 3,926.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,443.08 : 8,893.60 = 3,926.82 : x
2. Step 2: Convert to fraction form
   6,443.08/8,893.60 = 3,926.82/x
3. Step 3: Cross multiply
   6,443.08x = 8,893.60 × 3,926.82
4. Step 4: Simplify right side
   6,443.08x = 34,923,566.35
5. Step 5: Solve for x
   x = 34,923,566.35/6,443.08
6. Step 6: Final answer
   x = 5,420.32