Finding the Fourth Proportional to 5,150.55, 7,107.73 and 2,881.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,150.55 : 7,107.73 = 2,881.89 : x
2. Step 2: Convert to fraction form
   5,150.55/7,107.73 = 2,881.89/x
3. Step 3: Cross multiply
   5,150.55x = 7,107.73 × 2,881.89
4. Step 4: Simplify right side
   5,150.55x = 20,483,688.80
5. Step 5: Solve for x
   x = 20,483,688.80/5,150.55
6. Step 6: Final answer
   x = 3,976.99