Finding the Fourth Proportional to 9,105.76, 13,647.12 and 4,426.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,105.76 : 13,647.12 = 4,426.84 : x
2. Step 2: Convert to fraction form
   9,105.76/13,647.12 = 4,426.84/x
3. Step 3: Cross multiply
   9,105.76x = 13,647.12 × 4,426.84
4. Step 4: Simplify right side
   9,105.76x = 60,413,616.70
5. Step 5: Solve for x
   x = 60,413,616.70/9,105.76
6. Step 6: Final answer
   x = 6,634.66