Finding the Fourth Proportional to 5,478.72, 7,554.51 and 3,984.27

Step by Step Solution

1. Step 1: Write the proportion equation
   5,478.72 : 7,554.51 = 3,984.27 : x
2. Step 2: Convert to fraction form
   5,478.72/7,554.51 = 3,984.27/x
3. Step 3: Cross multiply
   5,478.72x = 7,554.51 × 3,984.27
4. Step 4: Simplify right side
   5,478.72x = 30,099,207.56
5. Step 5: Solve for x
   x = 30,099,207.56/5,478.72
6. Step 6: Final answer
   x = 5,493.84