Finding the Fourth Proportional to 5,143.89, 7,098.51 and 3,019.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,143.89 : 7,098.51 = 3,019.05 : x
2. Step 2: Convert to fraction form
   5,143.89/7,098.51 = 3,019.05/x
3. Step 3: Cross multiply
   5,143.89x = 7,098.51 × 3,019.05
4. Step 4: Simplify right side
   5,143.89x = 21,430,767.94
5. Step 5: Solve for x
   x = 21,430,767.94/5,143.89
6. Step 6: Final answer
   x = 4,166.25