Finding the Fourth Proportional to 3,869.36, 5,791.17 and 3,523.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,869.36 : 5,791.17 = 3,523.49 : x
2. Step 2: Convert to fraction form
   3,869.36/5,791.17 = 3,523.49/x
3. Step 3: Cross multiply
   3,869.36x = 5,791.17 × 3,523.49
4. Step 4: Simplify right side
   3,869.36x = 20,405,100.63
5. Step 5: Solve for x
   x = 20,405,100.63/3,869.36
6. Step 6: Final answer
   x = 5,273.51