Finding the Fourth Proportional to 8,146.78, 12,223.58 and 3,467.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,146.78 : 12,223.58 = 3,467.78 : x
2. Step 2: Convert to fraction form
   8,146.78/12,223.58 = 3,467.78/x
3. Step 3: Cross multiply
   8,146.78x = 12,223.58 × 3,467.78
4. Step 4: Simplify right side
   8,146.78x = 42,388,653.63
5. Step 5: Solve for x
   x = 42,388,653.63/8,146.78
6. Step 6: Final answer
   x = 5,203.12