Finding the Fourth Proportional to 5,871.89, 8,103.48 and 3,219.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,871.89 : 8,103.48 = 3,219.50 : x
2. Step 2: Convert to fraction form
   5,871.89/8,103.48 = 3,219.50/x
3. Step 3: Cross multiply
   5,871.89x = 8,103.48 × 3,219.50
4. Step 4: Simplify right side
   5,871.89x = 26,089,153.86
5. Step 5: Solve for x
   x = 26,089,153.86/5,871.89
6. Step 6: Final answer
   x = 4,443.06