Finding the Fourth Proportional to 5,208.86, 7,180.74 and 3,714.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,208.86 : 7,180.74 = 3,714.18 : x
2. Step 2: Convert to fraction form
   5,208.86/7,180.74 = 3,714.18/x
3. Step 3: Cross multiply
   5,208.86x = 7,180.74 × 3,714.18
4. Step 4: Simplify right side
   5,208.86x = 26,670,560.89
5. Step 5: Solve for x
   x = 26,670,560.89/5,208.86
6. Step 6: Final answer
   x = 5,120.23