Finding the Fourth Proportional to 12,436.80, 17,162.52 and 6,847.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,436.80 : 17,162.52 = 6,847.80 : x
2. Step 2: Convert to fraction form
   12,436.80/17,162.52 = 6,847.80/x
3. Step 3: Cross multiply
   12,436.80x = 17,162.52 × 6,847.80
4. Step 4: Simplify right side
   12,436.80x = 117,525,504.46
5. Step 5: Solve for x
   x = 117,525,504.46/12,436.80
6. Step 6: Final answer
   x = 9,449.82