Finding the Fourth Proportional to 7,066.20, 9,751.60 and 3,879.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,066.20 : 9,751.60 = 3,879.72 : x
2. Step 2: Convert to fraction form
   7,066.20/9,751.60 = 3,879.72/x
3. Step 3: Cross multiply
   7,066.20x = 9,751.60 × 3,879.72
4. Step 4: Simplify right side
   7,066.20x = 37,833,477.55
5. Step 5: Solve for x
   x = 37,833,477.55/7,066.20
6. Step 6: Final answer
   x = 5,354.15