Finding the Fourth Proportional to 8,071.65, 12,104.10 and 7,241.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,071.65 : 12,104.10 = 7,241.31 : x
2. Step 2: Convert to fraction form
   8,071.65/12,104.10 = 7,241.31/x
3. Step 3: Cross multiply
   8,071.65x = 12,104.10 × 7,241.31
4. Step 4: Simplify right side
   8,071.65x = 87,649,540.37
5. Step 5: Solve for x
   x = 87,649,540.37/8,071.65
6. Step 6: Final answer
   x = 10,858.94