Finding the Fourth Proportional to 30,821.55, 42,533.60 and 16,674.27

Step by Step Solution

1. Step 1: Write the proportion equation
   30,821.55 : 42,533.60 = 16,674.27 : x
2. Step 2: Convert to fraction form
   30,821.55/42,533.60 = 16,674.27/x
3. Step 3: Cross multiply
   30,821.55x = 42,533.60 × 16,674.27
4. Step 4: Simplify right side
   30,821.55x = 709,216,647.10
5. Step 5: Solve for x
   x = 709,216,647.10/30,821.55
6. Step 6: Final answer
   x = 23,010.41