Finding the Fourth Proportional to 5,119.83, 7,065.54 and 2,881.71

Step by Step Solution

1. Step 1: Write the proportion equation
   5,119.83 : 7,065.54 = 2,881.71 : x
2. Step 2: Convert to fraction form
   5,119.83/7,065.54 = 2,881.71/x
3. Step 3: Cross multiply
   5,119.83x = 7,065.54 × 2,881.71
4. Step 4: Simplify right side
   5,119.83x = 20,360,837.27
5. Step 5: Solve for x
   x = 20,360,837.27/5,119.83
6. Step 6: Final answer
   x = 3,976.86