Finding the Fourth Proportional to 12,436.61, 17,162.51 and 6,847.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,436.61 : 17,162.51 = 6,847.61 : x
2. Step 2: Convert to fraction form
   12,436.61/17,162.51 = 6,847.61/x
3. Step 3: Cross multiply
   12,436.61x = 17,162.51 × 6,847.61
4. Step 4: Simplify right side
   12,436.61x = 117,522,055.05
5. Step 5: Solve for x
   x = 117,522,055.05/12,436.61
6. Step 6: Final answer
   x = 9,449.69