Finding the Fourth Proportional to 5,345.25, 8,019.61 and 2,572.14

Step by Step Solution

1. Step 1: Write the proportion equation
   5,345.25 : 8,019.61 = 2,572.14 : x
2. Step 2: Convert to fraction form
   5,345.25/8,019.61 = 2,572.14/x
3. Step 3: Cross multiply
   5,345.25x = 8,019.61 × 2,572.14
4. Step 4: Simplify right side
   5,345.25x = 20,627,559.67
5. Step 5: Solve for x
   x = 20,627,559.67/5,345.25
6. Step 6: Final answer
   x = 3,859.05