Finding the Fourth Proportional to 21,874.98, 30,202 and 16,830.30

Step by Step Solution

1. Step 1: Write the proportion equation
   21,874.98 : 30,202 = 16,830.30 : x
2. Step 2: Convert to fraction form
   21,874.98/30,202 = 16,830.30/x
3. Step 3: Cross multiply
   21,874.98x = 30,202 × 16,830.30
4. Step 4: Simplify right side
   21,874.98x = 508,308,720.60
5. Step 5: Solve for x
   x = 508,308,720.60/21,874.98
6. Step 6: Final answer
   x = 23,236.99