Finding the Fourth Proportional to 5,443.34, 8,165.37 and 2,156.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,443.34 : 8,165.37 = 2,156.42 : x
2. Step 2: Convert to fraction form
   5,443.34/8,165.37 = 2,156.42/x
3. Step 3: Cross multiply
   5,443.34x = 8,165.37 × 2,156.42
4. Step 4: Simplify right side
   5,443.34x = 17,607,995.68
5. Step 5: Solve for x
   x = 17,607,995.68/5,443.34
6. Step 6: Final answer
   x = 3,234.78