Finding the Fourth Proportional to 7,159.86, 10,728.25 and 3,874.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,159.86 : 10,728.25 = 3,874.50 : x
2. Step 2: Convert to fraction form
   7,159.86/10,728.25 = 3,874.50/x
3. Step 3: Cross multiply
   7,159.86x = 10,728.25 × 3,874.50
4. Step 4: Simplify right side
   7,159.86x = 41,566,594.94
5. Step 5: Solve for x
   x = 41,566,594.94/7,159.86
6. Step 6: Final answer
   x = 5,805.50