Finding the Fourth Proportional to 5,443.47, 8,161.50 and 3,494.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,443.47 : 8,161.50 = 3,494.61 : x
2. Step 2: Convert to fraction form
   5,443.47/8,161.50 = 3,494.61/x
3. Step 3: Cross multiply
   5,443.47x = 8,161.50 × 3,494.61
4. Step 4: Simplify right side
   5,443.47x = 28,521,259.52
5. Step 5: Solve for x
   x = 28,521,259.52/5,443.47
6. Step 6: Final answer
   x = 5,239.54