Finding the Fourth Proportional to 16,528.82, 22,790.50 and 12,329.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,528.82 : 22,790.50 = 12,329.78 : x
2. Step 2: Convert to fraction form
   16,528.82/22,790.50 = 12,329.78/x
3. Step 3: Cross multiply
   16,528.82x = 22,790.50 × 12,329.78
4. Step 4: Simplify right side
   16,528.82x = 281,001,851.09
5. Step 5: Solve for x
   x = 281,001,851.09/16,528.82
6. Step 6: Final answer
   x = 17,000.72