Finding the Fourth Proportional to 6,443.47, 9,676.14 and 3,862.81

Step by Step Solution

1. Step 1: Write the proportion equation
   6,443.47 : 9,676.14 = 3,862.81 : x
2. Step 2: Convert to fraction form
   6,443.47/9,676.14 = 3,862.81/x
3. Step 3: Cross multiply
   6,443.47x = 9,676.14 × 3,862.81
4. Step 4: Simplify right side
   6,443.47x = 37,377,090.35
5. Step 5: Solve for x
   x = 37,377,090.35/6,443.47
6. Step 6: Final answer
   x = 5,800.77