Finding the Fourth Proportional to 10,093.69, 15,142.52 and 3,520.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,093.69 : 15,142.52 = 3,520.09 : x
2. Step 2: Convert to fraction form
   10,093.69/15,142.52 = 3,520.09/x
3. Step 3: Cross multiply
   10,093.69x = 15,142.52 × 3,520.09
4. Step 4: Simplify right side
   10,093.69x = 53,303,033.23
5. Step 5: Solve for x
   x = 53,303,033.23/10,093.69
6. Step 6: Final answer
   x = 5,280.83