Finding the Fourth Proportional to 7,776.24, 11,667.24 and 3,618.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,776.24 : 11,667.24 = 3,618.48 : x
2. Step 2: Convert to fraction form
   7,776.24/11,667.24 = 3,618.48/x
3. Step 3: Cross multiply
   7,776.24x = 11,667.24 × 3,618.48
4. Step 4: Simplify right side
   7,776.24x = 42,217,674.60
5. Step 5: Solve for x
   x = 42,217,674.60/7,776.24
6. Step 6: Final answer
   x = 5,429.06