Finding the Fourth Proportional to 12,249.48, 18,372.51 and 3,485.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,249.48 : 18,372.51 = 3,485.10 : x
2. Step 2: Convert to fraction form
   12,249.48/18,372.51 = 3,485.10/x
3. Step 3: Cross multiply
   12,249.48x = 18,372.51 × 3,485.10
4. Step 4: Simplify right side
   12,249.48x = 64,030,034.60
5. Step 5: Solve for x
   x = 64,030,034.60/12,249.48
6. Step 6: Final answer
   x = 5,227.16