Finding the Fourth Proportional to 21,993.72, 33,004.08 and 18,341.16

Step by Step Solution

1. Step 1: Write the proportion equation
   21,993.72 : 33,004.08 = 18,341.16 : x
2. Step 2: Convert to fraction form
   21,993.72/33,004.08 = 18,341.16/x
3. Step 3: Cross multiply
   21,993.72x = 33,004.08 × 18,341.16
4. Step 4: Simplify right side
   21,993.72x = 605,333,111.93
5. Step 5: Solve for x
   x = 605,333,111.93/21,993.72
6. Step 6: Final answer
   x = 27,523.00