Finding the Fourth Proportional to 8,290.65, 11,436.81 and 5,141.37

Step by Step Solution

1. Step 1: Write the proportion equation
   8,290.65 : 11,436.81 = 5,141.37 : x
2. Step 2: Convert to fraction form
   8,290.65/11,436.81 = 5,141.37/x
3. Step 3: Cross multiply
   8,290.65x = 11,436.81 × 5,141.37
4. Step 4: Simplify right side
   8,290.65x = 58,800,814.65
5. Step 5: Solve for x
   x = 58,800,814.65/8,290.65
6. Step 6: Final answer
   x = 7,092.43