Finding the Fourth Proportional to 13,504.79, 18,633.81 and 8,196.65

Step by Step Solution

1. Step 1: Write the proportion equation
   13,504.79 : 18,633.81 = 8,196.65 : x
2. Step 2: Convert to fraction form
   13,504.79/18,633.81 = 8,196.65/x
3. Step 3: Cross multiply
   13,504.79x = 18,633.81 × 8,196.65
4. Step 4: Simplify right side
   13,504.79x = 152,734,818.74
5. Step 5: Solve for x
   x = 152,734,818.74/13,504.79
6. Step 6: Final answer
   x = 11,309.68