Finding the Fourth Proportional to 7,805.79, 11,710.41 and 3,643.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,805.79 : 11,710.41 = 3,643.52 : x
2. Step 2: Convert to fraction form
   7,805.79/11,710.41 = 3,643.52/x
3. Step 3: Cross multiply
   7,805.79x = 11,710.41 × 3,643.52
4. Step 4: Simplify right side
   7,805.79x = 42,667,149.88
5. Step 5: Solve for x
   x = 42,667,149.88/7,805.79
6. Step 6: Final answer
   x = 5,466.09