Finding the Fourth Proportional to 21,820.88, 30,137.34 and 14,735

Step by Step Solution

1. Step 1: Write the proportion equation
   21,820.88 : 30,137.34 = 14,735 : x
2. Step 2: Convert to fraction form
   21,820.88/30,137.34 = 14,735/x
3. Step 3: Cross multiply
   21,820.88x = 30,137.34 × 14,735
4. Step 4: Simplify right side
   21,820.88x = 444,073,704.90
5. Step 5: Solve for x
   x = 444,073,704.90/21,820.88
6. Step 6: Final answer
   x = 20,350.86