Finding the Fourth Proportional to 7,108.10, 10,648.55 and 3,820.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,108.10 : 10,648.55 = 3,820.10 : x
2. Step 2: Convert to fraction form
   7,108.10/10,648.55 = 3,820.10/x
3. Step 3: Cross multiply
   7,108.10x = 10,648.55 × 3,820.10
4. Step 4: Simplify right side
   7,108.10x = 40,678,525.86
5. Step 5: Solve for x
   x = 40,678,525.86/7,108.10
6. Step 6: Final answer
   x = 5,722.84