Finding the Fourth Proportional to 7,225.59, 9,971.33 and 4,081.79

Step by Step Solution

1. Step 1: Write the proportion equation
   7,225.59 : 9,971.33 = 4,081.79 : x
2. Step 2: Convert to fraction form
   7,225.59/9,971.33 = 4,081.79/x
3. Step 3: Cross multiply
   7,225.59x = 9,971.33 × 4,081.79
4. Step 4: Simplify right side
   7,225.59x = 40,700,804.82
5. Step 5: Solve for x
   x = 40,700,804.82/7,225.59
6. Step 6: Final answer
   x = 5,632.87