Finding the Fourth Proportional to 5,304.60, 7,940.56 and 3,821.49

Step by Step Solution

1. Step 1: Write the proportion equation
   5,304.60 : 7,940.56 = 3,821.49 : x
2. Step 2: Convert to fraction form
   5,304.60/7,940.56 = 3,821.49/x
3. Step 3: Cross multiply
   5,304.60x = 7,940.56 × 3,821.49
4. Step 4: Simplify right side
   5,304.60x = 30,344,770.63
5. Step 5: Solve for x
   x = 30,344,770.63/5,304.60
6. Step 6: Final answer
   x = 5,720.46