Finding the Fourth Proportional to 5,907.57, 8,115.96 and 5,286.33

Step by Step Solution

1. Step 1: Write the proportion equation
   5,907.57 : 8,115.96 = 5,286.33 : x
2. Step 2: Convert to fraction form
   5,907.57/8,115.96 = 5,286.33/x
3. Step 3: Cross multiply
   5,907.57x = 8,115.96 × 5,286.33
4. Step 4: Simplify right side
   5,907.57x = 42,903,642.83
5. Step 5: Solve for x
   x = 42,903,642.83/5,907.57
6. Step 6: Final answer
   x = 7,262.49