Finding the Fourth Proportional to 5,540.72, 7,642.50 and 4,419.68

Step by Step Solution

1. Step 1: Write the proportion equation
   5,540.72 : 7,642.50 = 4,419.68 : x
2. Step 2: Convert to fraction form
   5,540.72/7,642.50 = 4,419.68/x
3. Step 3: Cross multiply
   5,540.72x = 7,642.50 × 4,419.68
4. Step 4: Simplify right side
   5,540.72x = 33,777,404.40
5. Step 5: Solve for x
   x = 33,777,404.40/5,540.72
6. Step 6: Final answer
   x = 6,096.21