Finding the Fourth Proportional to 6,436.89, 8,882.82 and 3,918.33

Step by Step Solution

1. Step 1: Write the proportion equation
   6,436.89 : 8,882.82 = 3,918.33 : x
2. Step 2: Convert to fraction form
   6,436.89/8,882.82 = 3,918.33/x
3. Step 3: Cross multiply
   6,436.89x = 8,882.82 × 3,918.33
4. Step 4: Simplify right side
   6,436.89x = 34,805,820.09
5. Step 5: Solve for x
   x = 34,805,820.09/6,436.89
6. Step 6: Final answer
   x = 5,407.24