Finding the Fourth Proportional to 7,439.12, 10,265.88 and 4,081.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,439.12 : 10,265.88 = 4,081.96 : x
2. Step 2: Convert to fraction form
   7,439.12/10,265.88 = 4,081.96/x
3. Step 3: Cross multiply
   7,439.12x = 10,265.88 × 4,081.96
4. Step 4: Simplify right side
   7,439.12x = 41,904,911.52
5. Step 5: Solve for x
   x = 41,904,911.52/7,439.12
6. Step 6: Final answer
   x = 5,633.05