Finding the Fourth Proportional to 30,217.72, 41,700.18 and 16,789

Step by Step Solution

1. Step 1: Write the proportion equation
   30,217.72 : 41,700.18 = 16,789 : x
2. Step 2: Convert to fraction form
   30,217.72/41,700.18 = 16,789/x
3. Step 3: Cross multiply
   30,217.72x = 41,700.18 × 16,789
4. Step 4: Simplify right side
   30,217.72x = 700,104,322.02
5. Step 5: Solve for x
   x = 700,104,322.02/30,217.72
6. Step 6: Final answer
   x = 23,168.67