Finding the Fourth Proportional to 5,443.85, 7,513.28 and 3,936.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,443.85 : 7,513.28 = 3,936.31 : x
2. Step 2: Convert to fraction form
   5,443.85/7,513.28 = 3,936.31/x
3. Step 3: Cross multiply
   5,443.85x = 7,513.28 × 3,936.31
4. Step 4: Simplify right side
   5,443.85x = 29,574,541.95
5. Step 5: Solve for x
   x = 29,574,541.95/5,443.85
6. Step 6: Final answer
   x = 5,432.65