Finding the Fourth Proportional to 5,435.78, 8,147.94 and 2,516

Step by Step Solution

1. Step 1: Write the proportion equation
   5,435.78 : 8,147.94 = 2,516 : x
2. Step 2: Convert to fraction form
   5,435.78/8,147.94 = 2,516/x
3. Step 3: Cross multiply
   5,435.78x = 8,147.94 × 2,516
4. Step 4: Simplify right side
   5,435.78x = 20,500,217.04
5. Step 5: Solve for x
   x = 20,500,217.04/5,435.78
6. Step 6: Final answer
   x = 3,771.35