Finding the Fourth Proportional to 7,173.27, 10,739.86 and 3,874.55

Step by Step Solution

1. Step 1: Write the proportion equation
   7,173.27 : 10,739.86 = 3,874.55 : x
2. Step 2: Convert to fraction form
   7,173.27/10,739.86 = 3,874.55/x
3. Step 3: Cross multiply
   7,173.27x = 10,739.86 × 3,874.55
4. Step 4: Simplify right side
   7,173.27x = 41,612,061.18
5. Step 5: Solve for x
   x = 41,612,061.18/7,173.27
6. Step 6: Final answer
   x = 5,800.99