Finding the Fourth Proportional to 8,734.20, 13,031.94 and 8,114.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,734.20 : 13,031.94 = 8,114.82 : x
2. Step 2: Convert to fraction form
   8,734.20/13,031.94 = 8,114.82/x
3. Step 3: Cross multiply
   8,734.20x = 13,031.94 × 8,114.82
4. Step 4: Simplify right side
   8,734.20x = 105,751,847.35
5. Step 5: Solve for x
   x = 105,751,847.35/8,734.20
6. Step 6: Final answer
   x = 12,107.79