Finding the Fourth Proportional to 5,181.56, 7,150.61 and 2,823.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,181.56 : 7,150.61 = 2,823.69 : x
2. Step 2: Convert to fraction form
   5,181.56/7,150.61 = 2,823.69/x
3. Step 3: Cross multiply
   5,181.56x = 7,150.61 × 2,823.69
4. Step 4: Simplify right side
   5,181.56x = 20,191,113.01
5. Step 5: Solve for x
   x = 20,191,113.01/5,181.56
6. Step 6: Final answer
   x = 3,896.73