Finding the Fourth Proportional to 13,685.51, 18,869.82 and 9,653.00

Step by Step Solution

1. Step 1: Write the proportion equation
   13,685.51 : 18,869.82 = 9,653.00 : x
2. Step 2: Convert to fraction form
   13,685.51/18,869.82 = 9,653.00/x
3. Step 3: Cross multiply
   13,685.51x = 18,869.82 × 9,653.00
4. Step 4: Simplify right side
   13,685.51x = 182,150,229.85
5. Step 5: Solve for x
   x = 182,150,229.85/13,685.51
6. Step 6: Final answer
   x = 13,309.72