Finding the Fourth Proportional to 12,946.60, 17,823.12 and 12,351.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,946.60 : 17,823.12 = 12,351.49 : x
2. Step 2: Convert to fraction form
   12,946.60/17,823.12 = 12,351.49/x
3. Step 3: Cross multiply
   12,946.60x = 17,823.12 × 12,351.49
4. Step 4: Simplify right side
   12,946.60x = 220,142,043.89
5. Step 5: Solve for x
   x = 220,142,043.89/12,946.60
6. Step 6: Final answer
   x = 17,003.85