Finding the Fourth Proportional to 7,469.12, 10,306.71 and 4,111.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,469.12 : 10,306.71 = 4,111.89 : x
2. Step 2: Convert to fraction form
   7,469.12/10,306.71 = 4,111.89/x
3. Step 3: Cross multiply
   7,469.12x = 10,306.71 × 4,111.89
4. Step 4: Simplify right side
   7,469.12x = 42,380,057.78
5. Step 5: Solve for x
   x = 42,380,057.78/7,469.12
6. Step 6: Final answer
   x = 5,674.04