Finding the Fourth Proportional to 5,500.91, 7,580.97 and 3,926.27

Step by Step Solution

1. Step 1: Write the proportion equation
   5,500.91 : 7,580.97 = 3,926.27 : x
2. Step 2: Convert to fraction form
   5,500.91/7,580.97 = 3,926.27/x
3. Step 3: Cross multiply
   5,500.91x = 7,580.97 × 3,926.27
4. Step 4: Simplify right side
   5,500.91x = 29,764,897.18
5. Step 5: Solve for x
   x = 29,764,897.18/5,500.91
6. Step 6: Final answer
   x = 5,410.91