Finding the Fourth Proportional to 5,227.27, 7,213.59 and 2,837.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,227.27 : 7,213.59 = 2,837.18 : x
2. Step 2: Convert to fraction form
   5,227.27/7,213.59 = 2,837.18/x
3. Step 3: Cross multiply
   5,227.27x = 7,213.59 × 2,837.18
4. Step 4: Simplify right side
   5,227.27x = 20,466,271.31
5. Step 5: Solve for x
   x = 20,466,271.31/5,227.27
6. Step 6: Final answer
   x = 3,915.29