Finding the Fourth Proportional to 16,499.16, 22,768.56 and 9,328.95

Step by Step Solution

1. Step 1: Write the proportion equation
   16,499.16 : 22,768.56 = 9,328.95 : x
2. Step 2: Convert to fraction form
   16,499.16/22,768.56 = 9,328.95/x
3. Step 3: Cross multiply
   16,499.16x = 22,768.56 × 9,328.95
4. Step 4: Simplify right side
   16,499.16x = 212,406,757.81
5. Step 5: Solve for x
   x = 212,406,757.81/16,499.16
6. Step 6: Final answer
   x = 12,873.79