Finding the Fourth Proportional to 12,301.70, 16,946.72 and 9,783.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,301.70 : 16,946.72 = 9,783.02 : x
2. Step 2: Convert to fraction form
   12,301.70/16,946.72 = 9,783.02/x
3. Step 3: Cross multiply
   12,301.70x = 16,946.72 × 9,783.02
4. Step 4: Simplify right side
   12,301.70x = 165,790,100.69
5. Step 5: Solve for x
   x = 165,790,100.69/12,301.70
6. Step 6: Final answer
   x = 13,477.01