Finding the Fourth Proportional to 23,965.56, 33,072.71 and 13,210.83

Step by Step Solution

1. Step 1: Write the proportion equation
   23,965.56 : 33,072.71 = 13,210.83 : x
2. Step 2: Convert to fraction form
   23,965.56/33,072.71 = 13,210.83/x
3. Step 3: Cross multiply
   23,965.56x = 33,072.71 × 13,210.83
4. Step 4: Simplify right side
   23,965.56x = 436,917,883.40
5. Step 5: Solve for x
   x = 436,917,883.40/23,965.56
6. Step 6: Final answer
   x = 18,231.07