Finding the Fourth Proportional to 5,548.05, 7,643.29 and 3,866.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,548.05 : 7,643.29 = 3,866.42 : x
2. Step 2: Convert to fraction form
   5,548.05/7,643.29 = 3,866.42/x
3. Step 3: Cross multiply
   5,548.05x = 7,643.29 × 3,866.42
4. Step 4: Simplify right side
   5,548.05x = 29,552,169.32
5. Step 5: Solve for x
   x = 29,552,169.32/5,548.05
6. Step 6: Final answer
   x = 5,326.59