Finding the Fourth Proportional to 5,148.81, 7,105.50 and 2,910.64

Step by Step Solution

1. Step 1: Write the proportion equation
   5,148.81 : 7,105.50 = 2,910.64 : x
2. Step 2: Convert to fraction form
   5,148.81/7,105.50 = 2,910.64/x
3. Step 3: Cross multiply
   5,148.81x = 7,105.50 × 2,910.64
4. Step 4: Simplify right side
   5,148.81x = 20,681,552.52
5. Step 5: Solve for x
   x = 20,681,552.52/5,148.81
6. Step 6: Final answer
   x = 4,016.76