Finding the Fourth Proportional to 12,288.56, 18,436.04 and 3,524.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,288.56 : 18,436.04 = 3,524.16 : x
2. Step 2: Convert to fraction form
   12,288.56/18,436.04 = 3,524.16/x
3. Step 3: Cross multiply
   12,288.56x = 18,436.04 × 3,524.16
4. Step 4: Simplify right side
   12,288.56x = 64,971,554.73
5. Step 5: Solve for x
   x = 64,971,554.73/12,288.56
6. Step 6: Final answer
   x = 5,287.16