Finding the Fourth Proportional to 6,443.77, 8,892.21 and 3,791.33

Step by Step Solution

1. Step 1: Write the proportion equation
   6,443.77 : 8,892.21 = 3,791.33 : x
2. Step 2: Convert to fraction form
   6,443.77/8,892.21 = 3,791.33/x
3. Step 3: Cross multiply
   6,443.77x = 8,892.21 × 3,791.33
4. Step 4: Simplify right side
   6,443.77x = 33,713,302.54
5. Step 5: Solve for x
   x = 33,713,302.54/6,443.77
6. Step 6: Final answer
   x = 5,231.92