Finding the Fourth Proportional to 8,131.91, 11,223.50 and 5,264.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,131.91 : 11,223.50 = 5,264.18 : x
2. Step 2: Convert to fraction form
   8,131.91/11,223.50 = 5,264.18/x
3. Step 3: Cross multiply
   8,131.91x = 11,223.50 × 5,264.18
4. Step 4: Simplify right side
   8,131.91x = 59,082,524.23
5. Step 5: Solve for x
   x = 59,082,524.23/8,131.91
6. Step 6: Final answer
   x = 7,265.52