Finding the Fourth Proportional to 8,566.08, 12,837.78 and 5,436.24

Step by Step Solution

1. Step 1: Write the proportion equation
   8,566.08 : 12,837.78 = 5,436.24 : x
2. Step 2: Convert to fraction form
   8,566.08/12,837.78 = 5,436.24/x
3. Step 3: Cross multiply
   8,566.08x = 12,837.78 × 5,436.24
4. Step 4: Simplify right side
   8,566.08x = 69,789,253.15
5. Step 5: Solve for x
   x = 69,789,253.15/8,566.08
6. Step 6: Final answer
   x = 8,147.16