Finding the Fourth Proportional to 5,401.36, 8,105.28 and 3,548.08

Step by Step Solution

1. Step 1: Write the proportion equation
   5,401.36 : 8,105.28 = 3,548.08 : x
2. Step 2: Convert to fraction form
   5,401.36/8,105.28 = 3,548.08/x
3. Step 3: Cross multiply
   5,401.36x = 8,105.28 × 3,548.08
4. Step 4: Simplify right side
   5,401.36x = 28,758,181.86
5. Step 5: Solve for x
   x = 28,758,181.86/5,401.36
6. Step 6: Final answer
   x = 5,324.25