Finding the Fourth Proportional to 12,659.86, 17,465.25 and 8,469.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,659.86 : 17,465.25 = 8,469.46 : x
2. Step 2: Convert to fraction form
   12,659.86/17,465.25 = 8,469.46/x
3. Step 3: Cross multiply
   12,659.86x = 17,465.25 × 8,469.46
4. Step 4: Simplify right side
   12,659.86x = 147,921,236.27
5. Step 5: Solve for x
   x = 147,921,236.27/12,659.86
6. Step 6: Final answer
   x = 11,684.27