Finding the Fourth Proportional to 5,118.42, 7,062.12 and 2,880.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,118.42 : 7,062.12 = 2,880.16 : x
2. Step 2: Convert to fraction form
   5,118.42/7,062.12 = 2,880.16/x
3. Step 3: Cross multiply
   5,118.42x = 7,062.12 × 2,880.16
4. Step 4: Simplify right side
   5,118.42x = 20,340,035.54
5. Step 5: Solve for x
   x = 20,340,035.54/5,118.42
6. Step 6: Final answer
   x = 3,973.89