Finding the Fourth Proportional to 10,570.38, 15,843.69 and 5,019.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,570.38 : 15,843.69 = 5,019.18 : x
2. Step 2: Convert to fraction form
   10,570.38/15,843.69 = 5,019.18/x
3. Step 3: Cross multiply
   10,570.38x = 15,843.69 × 5,019.18
4. Step 4: Simplify right side
   10,570.38x = 79,522,331.97
5. Step 5: Solve for x
   x = 79,522,331.97/10,570.38
6. Step 6: Final answer
   x = 7,523.13