Finding the Fourth Proportional to 8,147.18, 12,214.78 and 2,597.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,147.18 : 12,214.78 = 2,597.34 : x
2. Step 2: Convert to fraction form
   8,147.18/12,214.78 = 2,597.34/x
3. Step 3: Cross multiply
   8,147.18x = 12,214.78 × 2,597.34
4. Step 4: Simplify right side
   8,147.18x = 31,725,936.69
5. Step 5: Solve for x
   x = 31,725,936.69/8,147.18
6. Step 6: Final answer
   x = 3,894.10