Finding the Fourth Proportional to 30,945.57, 42,704.59 and 16,798.11

Step by Step Solution

1. Step 1: Write the proportion equation
   30,945.57 : 42,704.59 = 16,798.11 : x
2. Step 2: Convert to fraction form
   30,945.57/42,704.59 = 16,798.11/x
3. Step 3: Cross multiply
   30,945.57x = 42,704.59 × 16,798.11
4. Step 4: Simplify right side
   30,945.57x = 717,356,400.32
5. Step 5: Solve for x
   x = 717,356,400.32/30,945.57
6. Step 6: Final answer
   x = 23,181.23