Finding the Fourth Proportional to 7,936.27, 11,909.89 and 2,742.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,936.27 : 11,909.89 = 2,742.15 : x
2. Step 2: Convert to fraction form
   7,936.27/11,909.89 = 2,742.15/x
3. Step 3: Cross multiply
   7,936.27x = 11,909.89 × 2,742.15
4. Step 4: Simplify right side
   7,936.27x = 32,658,704.86
5. Step 5: Solve for x
   x = 32,658,704.86/7,936.27
6. Step 6: Final answer
   x = 4,115.12