Finding the Fourth Proportional to 21,443.40, 32,087.34 and 18,119.16

Step by Step Solution

1. Step 1: Write the proportion equation
   21,443.40 : 32,087.34 = 18,119.16 : x
2. Step 2: Convert to fraction form
   21,443.40/32,087.34 = 18,119.16/x
3. Step 3: Cross multiply
   21,443.40x = 32,087.34 × 18,119.16
4. Step 4: Simplify right side
   21,443.40x = 581,395,647.43
5. Step 5: Solve for x
   x = 581,395,647.43/21,443.40
6. Step 6: Final answer
   x = 27,113.03