Finding the Fourth Proportional to 7,274.39, 10,911.50 and 3,110.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,274.39 : 10,911.50 = 3,110.86 : x
2. Step 2: Convert to fraction form
   7,274.39/10,911.50 = 3,110.86/x
3. Step 3: Cross multiply
   7,274.39x = 10,911.50 × 3,110.86
4. Step 4: Simplify right side
   7,274.39x = 33,944,078.78
5. Step 5: Solve for x
   x = 33,944,078.78/7,274.39
6. Step 6: Final answer
   x = 4,666.24