Finding the Fourth Proportional to 21,923.07, 32,892.89 and 13,164.09

Step by Step Solution

1. Step 1: Write the proportion equation
   21,923.07 : 32,892.89 = 13,164.09 : x
2. Step 2: Convert to fraction form
   21,923.07/32,892.89 = 13,164.09/x
3. Step 3: Cross multiply
   21,923.07x = 32,892.89 × 13,164.09
4. Step 4: Simplify right side
   21,923.07x = 433,004,964.32
5. Step 5: Solve for x
   x = 433,004,964.32/21,923.07
6. Step 6: Final answer
   x = 19,751.11