Finding the Fourth Proportional to 5,641.07, 8,469.57 and 3,554.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,641.07 : 8,469.57 = 3,554.31 : x
2. Step 2: Convert to fraction form
   5,641.07/8,469.57 = 3,554.31/x
3. Step 3: Cross multiply
   5,641.07x = 8,469.57 × 3,554.31
4. Step 4: Simplify right side
   5,641.07x = 30,103,477.35
5. Step 5: Solve for x
   x = 30,103,477.35/5,641.07
6. Step 6: Final answer
   x = 5,336.48