Finding the Fourth Proportional to 30,769.72, 42,462.16 and 16,622.52

Step by Step Solution

1. Step 1: Write the proportion equation
   30,769.72 : 42,462.16 = 16,622.52 : x
2. Step 2: Convert to fraction form
   30,769.72/42,462.16 = 16,622.52/x
3. Step 3: Cross multiply
   30,769.72x = 42,462.16 × 16,622.52
4. Step 4: Simplify right side
   30,769.72x = 705,828,103.84
5. Step 5: Solve for x
   x = 705,828,103.84/30,769.72
6. Step 6: Final answer
   x = 22,939.05