Finding the Fourth Proportional to 5,142.81, 7,097.19 and 3,018.96

Step by Step Solution

1. Step 1: Write the proportion equation
   5,142.81 : 7,097.19 = 3,018.96 : x
2. Step 2: Convert to fraction form
   5,142.81/7,097.19 = 3,018.96/x
3. Step 3: Cross multiply
   5,142.81x = 7,097.19 × 3,018.96
4. Step 4: Simplify right side
   5,142.81x = 21,426,132.72
5. Step 5: Solve for x
   x = 21,426,132.72/5,142.81
6. Step 6: Final answer
   x = 4,166.23