Finding the Fourth Proportional to 30,520.67, 42,116.43 and 16,908.24

Step by Step Solution

1. Step 1: Write the proportion equation
   30,520.67 : 42,116.43 = 16,908.24 : x
2. Step 2: Convert to fraction form
   30,520.67/42,116.43 = 16,908.24/x
3. Step 3: Cross multiply
   30,520.67x = 42,116.43 × 16,908.24
4. Step 4: Simplify right side
   30,520.67x = 712,114,706.38
5. Step 5: Solve for x
   x = 712,114,706.38/30,520.67
6. Step 6: Final answer
   x = 23,332.21