Finding the Fourth Proportional to 8,131.34, 11,223.89 and 4,774.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,131.34 : 11,223.89 = 4,774.07 : x
2. Step 2: Convert to fraction form
   8,131.34/11,223.89 = 4,774.07/x
3. Step 3: Cross multiply
   8,131.34x = 11,223.89 × 4,774.07
4. Step 4: Simplify right side
   8,131.34x = 53,583,556.54
5. Step 5: Solve for x
   x = 53,583,556.54/8,131.34
6. Step 6: Final answer
   x = 6,589.76