Finding the Fourth Proportional to 7,786.22, 10,732.18 and 5,518.32

Step by Step Solution

1. Step 1: Write the proportion equation
   7,786.22 : 10,732.18 = 5,518.32 : x
2. Step 2: Convert to fraction form
   7,786.22/10,732.18 = 5,518.32/x
3. Step 3: Cross multiply
   7,786.22x = 10,732.18 × 5,518.32
4. Step 4: Simplify right side
   7,786.22x = 59,223,603.54
5. Step 5: Solve for x
   x = 59,223,603.54/7,786.22
6. Step 6: Final answer
   x = 7,606.21