Finding the Fourth Proportional to 12,846.72, 19,268.64 and 3,613.44

Step by Step Solution

1. Step 1: Write the proportion equation
   12,846.72 : 19,268.64 = 3,613.44 : x
2. Step 2: Convert to fraction form
   12,846.72/19,268.64 = 3,613.44/x
3. Step 3: Cross multiply
   12,846.72x = 19,268.64 × 3,613.44
4. Step 4: Simplify right side
   12,846.72x = 69,626,074.52
5. Step 5: Solve for x
   x = 69,626,074.52/12,846.72
6. Step 6: Final answer
   x = 5,419.75