Finding the Fourth Proportional to 19,696.43, 27,171.70 and 13,325.27

Step by Step Solution

1. Step 1: Write the proportion equation
   19,696.43 : 27,171.70 = 13,325.27 : x
2. Step 2: Convert to fraction form
   19,696.43/27,171.70 = 13,325.27/x
3. Step 3: Cross multiply
   19,696.43x = 27,171.70 × 13,325.27
4. Step 4: Simplify right side
   19,696.43x = 362,070,069.69
5. Step 5: Solve for x
   x = 362,070,069.69/19,696.43
6. Step 6: Final answer
   x = 18,382.52