Finding the Fourth Proportional to 5,181.53, 7,150.53 and 2,823.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,181.53 : 7,150.53 = 2,823.72 : x
2. Step 2: Convert to fraction form
   5,181.53/7,150.53 = 2,823.72/x
3. Step 3: Cross multiply
   5,181.53x = 7,150.53 × 2,823.72
4. Step 4: Simplify right side
   5,181.53x = 20,191,094.57
5. Step 5: Solve for x
   x = 20,191,094.57/5,181.53
6. Step 6: Final answer
   x = 3,896.75