Finding the Fourth Proportional to 12,267.12, 18,403.79 and 3,502.07

Step by Step Solution

1. Step 1: Write the proportion equation
   12,267.12 : 18,403.79 = 3,502.07 : x
2. Step 2: Convert to fraction form
   12,267.12/18,403.79 = 3,502.07/x
3. Step 3: Cross multiply
   12,267.12x = 18,403.79 × 3,502.07
4. Step 4: Simplify right side
   12,267.12x = 64,451,360.85
5. Step 5: Solve for x
   x = 64,451,360.85/12,267.12
6. Step 6: Final answer
   x = 5,253.99