Finding the Fourth Proportional to 12,284.78, 18,424.05 and 3,517.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,284.78 : 18,424.05 = 3,517.34 : x
2. Step 2: Convert to fraction form
   12,284.78/18,424.05 = 3,517.34/x
3. Step 3: Cross multiply
   12,284.78x = 18,424.05 × 3,517.34
4. Step 4: Simplify right side
   12,284.78x = 64,803,648.03
5. Step 5: Solve for x
   x = 64,803,648.03/12,284.78
6. Step 6: Final answer
   x = 5,275.12