Finding the Fourth Proportional to 12,300.36, 18,450.56 and 3,535.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,300.36 : 18,450.56 = 3,535.28 : x
2. Step 2: Convert to fraction form
   12,300.36/18,450.56 = 3,535.28/x
3. Step 3: Cross multiply
   12,300.36x = 18,450.56 × 3,535.28
4. Step 4: Simplify right side
   12,300.36x = 65,227,785.83
5. Step 5: Solve for x
   x = 65,227,785.83/12,300.36
6. Step 6: Final answer
   x = 5,302.92