Finding the Fourth Proportional to 5,434.17, 8,145.42 and 3,559.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,434.17 : 8,145.42 = 3,559.34 : x
2. Step 2: Convert to fraction form
   5,434.17/8,145.42 = 3,559.34/x
3. Step 3: Cross multiply
   5,434.17x = 8,145.42 × 3,559.34
4. Step 4: Simplify right side
   5,434.17x = 28,992,278.50
5. Step 5: Solve for x
   x = 28,992,278.50/5,434.17
6. Step 6: Final answer
   x = 5,335.18