Finding the Fourth Proportional to 8,271.49, 11,410.37 and 5,122.21

Step by Step Solution

1. Step 1: Write the proportion equation
   8,271.49 : 11,410.37 = 5,122.21 : x
2. Step 2: Convert to fraction form
   8,271.49/11,410.37 = 5,122.21/x
3. Step 3: Cross multiply
   8,271.49x = 11,410.37 × 5,122.21
4. Step 4: Simplify right side
   8,271.49x = 58,446,254.27
5. Step 5: Solve for x
   x = 58,446,254.27/8,271.49
6. Step 6: Final answer
   x = 7,065.99