Finding the Fourth Proportional to 13,647.82, 18,834.27 and 7,679.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,647.82 : 18,834.27 = 7,679.48 : x
2. Step 2: Convert to fraction form
   13,647.82/18,834.27 = 7,679.48/x
3. Step 3: Cross multiply
   13,647.82x = 18,834.27 × 7,679.48
4. Step 4: Simplify right side
   13,647.82x = 144,637,478.92
5. Step 5: Solve for x
   x = 144,637,478.92/13,647.82
6. Step 6: Final answer
   x = 10,597.85