Finding the Fourth Proportional to 12,564.54, 17,323.83 and 10,859.97

Step by Step Solution

1. Step 1: Write the proportion equation
   12,564.54 : 17,323.83 = 10,859.97 : x
2. Step 2: Convert to fraction form
   12,564.54/17,323.83 = 10,859.97/x
3. Step 3: Cross multiply
   12,564.54x = 17,323.83 × 10,859.97
4. Step 4: Simplify right side
   12,564.54x = 188,136,274.09
5. Step 5: Solve for x
   x = 188,136,274.09/12,564.54
6. Step 6: Final answer
   x = 14,973.59