Finding the Fourth Proportional to 8,271.21, 12,404.94 and 2,428.27

Step by Step Solution

1. Step 1: Write the proportion equation
   8,271.21 : 12,404.94 = 2,428.27 : x
2. Step 2: Convert to fraction form
   8,271.21/12,404.94 = 2,428.27/x
3. Step 3: Cross multiply
   8,271.21x = 12,404.94 × 2,428.27
4. Step 4: Simplify right side
   8,271.21x = 30,122,543.65
5. Step 5: Solve for x
   x = 30,122,543.65/8,271.21
6. Step 6: Final answer
   x = 3,641.85