Finding the Fourth Proportional to 5,181.72, 7,150.86 and 2,823.96

Step by Step Solution

1. Step 1: Write the proportion equation
   5,181.72 : 7,150.86 = 2,823.96 : x
2. Step 2: Convert to fraction form
   5,181.72/7,150.86 = 2,823.96/x
3. Step 3: Cross multiply
   5,181.72x = 7,150.86 × 2,823.96
4. Step 4: Simplify right side
   5,181.72x = 20,193,742.61
5. Step 5: Solve for x
   x = 20,193,742.61/5,181.72
6. Step 6: Final answer
   x = 3,897.11