Finding the Fourth Proportional to 9,286.55, 13,929.89 and 2,717.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,286.55 : 13,929.89 = 2,717.31 : x
2. Step 2: Convert to fraction form
   9,286.55/13,929.89 = 2,717.31/x
3. Step 3: Cross multiply
   9,286.55x = 13,929.89 × 2,717.31
4. Step 4: Simplify right side
   9,286.55x = 37,851,815.81
5. Step 5: Solve for x
   x = 37,851,815.81/9,286.55
6. Step 6: Final answer
   x = 4,075.98