Finding the Fourth Proportional to 9,028.26, 13,542.69 and 3,105.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,028.26 : 13,542.69 = 3,105.09 : x
2. Step 2: Convert to fraction form
   9,028.26/13,542.69 = 3,105.09/x
3. Step 3: Cross multiply
   9,028.26x = 13,542.69 × 3,105.09
4. Step 4: Simplify right side
   9,028.26x = 42,051,271.29
5. Step 5: Solve for x
   x = 42,051,271.29/9,028.26
6. Step 6: Final answer
   x = 4,657.74