Finding the Fourth Proportional to 5,181.56, 7,150.51 and 2,823.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,181.56 : 7,150.51 = 2,823.72 : x
2. Step 2: Convert to fraction form
   5,181.56/7,150.51 = 2,823.72/x
3. Step 3: Cross multiply
   5,181.56x = 7,150.51 × 2,823.72
4. Step 4: Simplify right side
   5,181.56x = 20,191,038.10
5. Step 5: Solve for x
   x = 20,191,038.10/5,181.56
6. Step 6: Final answer
   x = 3,896.71