Finding the Fourth Proportional to 13,184.72, 19,779 and 3,949.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,184.72 : 19,779 = 3,949.52 : x
2. Step 2: Convert to fraction form
   13,184.72/19,779 = 3,949.52/x
3. Step 3: Cross multiply
   13,184.72x = 19,779 × 3,949.52
4. Step 4: Simplify right side
   13,184.72x = 78,117,556.08
5. Step 5: Solve for x
   x = 78,117,556.08/13,184.72
6. Step 6: Final answer
   x = 5,924.86