Finding the Fourth Proportional to 5,636.72, 8,456.52 and 2,558

Step by Step Solution

1. Step 1: Write the proportion equation
   5,636.72 : 8,456.52 = 2,558 : x
2. Step 2: Convert to fraction form
   5,636.72/8,456.52 = 2,558/x
3. Step 3: Cross multiply
   5,636.72x = 8,456.52 × 2,558
4. Step 4: Simplify right side
   5,636.72x = 21,631,778.16
5. Step 5: Solve for x
   x = 21,631,778.16/5,636.72
6. Step 6: Final answer
   x = 3,837.65