Finding the Fourth Proportional to 13,104.50, 19,659.78 and 3,744.64

Step by Step Solution

1. Step 1: Write the proportion equation
   13,104.50 : 19,659.78 = 3,744.64 : x
2. Step 2: Convert to fraction form
   13,104.50/19,659.78 = 3,744.64/x
3. Step 3: Cross multiply
   13,104.50x = 19,659.78 × 3,744.64
4. Step 4: Simplify right side
   13,104.50x = 73,618,823.15
5. Step 5: Solve for x
   x = 73,618,823.15/13,104.50
6. Step 6: Final answer
   x = 5,617.83