Finding the Fourth Proportional to 5,513.75, 8,271.86 and 1,815.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,513.75 : 8,271.86 = 1,815.83 : x
2. Step 2: Convert to fraction form
   5,513.75/8,271.86 = 1,815.83/x
3. Step 3: Cross multiply
   5,513.75x = 8,271.86 × 1,815.83
4. Step 4: Simplify right side
   5,513.75x = 15,020,241.11
5. Step 5: Solve for x
   x = 15,020,241.11/5,513.75
6. Step 6: Final answer
   x = 2,724.15