Finding the Fourth Proportional to 30,945.76, 42,705.20 and 16,798.62

Step by Step Solution

1. Step 1: Write the proportion equation
   30,945.76 : 42,705.20 = 16,798.62 : x
2. Step 2: Convert to fraction form
   30,945.76/42,705.20 = 16,798.62/x
3. Step 3: Cross multiply
   30,945.76x = 42,705.20 × 16,798.62
4. Step 4: Simplify right side
   30,945.76x = 717,388,426.82
5. Step 5: Solve for x
   x = 717,388,426.82/30,945.76
6. Step 6: Final answer
   x = 23,182.12