Finding the Fourth Proportional to 8,979.56, 13,468.38 and 3,136.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,979.56 : 13,468.38 = 3,136.28 : x
2. Step 2: Convert to fraction form
   8,979.56/13,468.38 = 3,136.28/x
3. Step 3: Cross multiply
   8,979.56x = 13,468.38 × 3,136.28
4. Step 4: Simplify right side
   8,979.56x = 42,240,610.83
5. Step 5: Solve for x
   x = 42,240,610.83/8,979.56
6. Step 6: Final answer
   x = 4,704.08