Finding the Fourth Proportional to 5,345.57, 8,019.57 and 2,424.71

Step by Step Solution

1. Step 1: Write the proportion equation
   5,345.57 : 8,019.57 = 2,424.71 : x
2. Step 2: Convert to fraction form
   5,345.57/8,019.57 = 2,424.71/x
3. Step 3: Cross multiply
   5,345.57x = 8,019.57 × 2,424.71
4. Step 4: Simplify right side
   5,345.57x = 19,445,131.57
5. Step 5: Solve for x
   x = 19,445,131.57/5,345.57
6. Step 6: Final answer
   x = 3,637.62