Finding the Fourth Proportional to 8,653.52, 11,942.69 and 5,509.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,653.52 : 11,942.69 = 5,509.50 : x
2. Step 2: Convert to fraction form
   8,653.52/11,942.69 = 5,509.50/x
3. Step 3: Cross multiply
   8,653.52x = 11,942.69 × 5,509.50
4. Step 4: Simplify right side
   8,653.52x = 65,798,223.01
5. Step 5: Solve for x
   x = 65,798,223.01/8,653.52
6. Step 6: Final answer
   x = 7,603.64