Finding the Fourth Proportional to 7,103.92, 10,656.42 and 1,909.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,103.92 : 10,656.42 = 1,909.72 : x
2. Step 2: Convert to fraction form
   7,103.92/10,656.42 = 1,909.72/x
3. Step 3: Cross multiply
   7,103.92x = 10,656.42 × 1,909.72
4. Step 4: Simplify right side
   7,103.92x = 20,350,778.40
5. Step 5: Solve for x
   x = 20,350,778.40/7,103.92
6. Step 6: Final answer
   x = 2,864.73