Finding the Fourth Proportional to 8,782.22, 12,111.37 and 5,756.24

Step by Step Solution

1. Step 1: Write the proportion equation
   8,782.22 : 12,111.37 = 5,756.24 : x
2. Step 2: Convert to fraction form
   8,782.22/12,111.37 = 5,756.24/x
3. Step 3: Cross multiply
   8,782.22x = 12,111.37 × 5,756.24
4. Step 4: Simplify right side
   8,782.22x = 69,715,952.45
5. Step 5: Solve for x
   x = 69,715,952.45/8,782.22
6. Step 6: Final answer
   x = 7,938.31