Finding the Fourth Proportional to 12,300.27, 18,450.53 and 3,535.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,300.27 : 18,450.53 = 3,535.19 : x
2. Step 2: Convert to fraction form
   12,300.27/18,450.53 = 3,535.19/x
3. Step 3: Cross multiply
   12,300.27x = 18,450.53 × 3,535.19
4. Step 4: Simplify right side
   12,300.27x = 65,226,129.15
5. Step 5: Solve for x
   x = 65,226,129.15/12,300.27
6. Step 6: Final answer
   x = 5,302.82