Finding the Fourth Proportional to 5,112.42, 7,055.27 and 2,874.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,112.42 : 7,055.27 = 2,874.16 : x
2. Step 2: Convert to fraction form
   5,112.42/7,055.27 = 2,874.16/x
3. Step 3: Cross multiply
   5,112.42x = 7,055.27 × 2,874.16
4. Step 4: Simplify right side
   5,112.42x = 20,277,974.82
5. Step 5: Solve for x
   x = 20,277,974.82/5,112.42
6. Step 6: Final answer
   x = 3,966.41