Finding the Fourth Proportional to 5,089.40, 7,023.35 and 2,851.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,089.40 : 7,023.35 = 2,851.30 : x
2. Step 2: Convert to fraction form
   5,089.40/7,023.35 = 2,851.30/x
3. Step 3: Cross multiply
   5,089.40x = 7,023.35 × 2,851.30
4. Step 4: Simplify right side
   5,089.40x = 20,025,677.86
5. Step 5: Solve for x
   x = 20,025,677.86/5,089.40
6. Step 6: Final answer
   x = 3,934.78