Finding the Fourth Proportional to 30,769.32, 42,461.68 and 16,622.16

Step by Step Solution

1. Step 1: Write the proportion equation
   30,769.32 : 42,461.68 = 16,622.16 : x
2. Step 2: Convert to fraction form
   30,769.32/42,461.68 = 16,622.16/x
3. Step 3: Cross multiply
   30,769.32x = 42,461.68 × 16,622.16
4. Step 4: Simplify right side
   30,769.32x = 705,804,838.83
5. Step 5: Solve for x
   x = 705,804,838.83/30,769.32
6. Step 6: Final answer
   x = 22,938.59