Finding the Fourth Proportional to 16,884.56, 23,300.78 and 9,330.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,884.56 : 23,300.78 = 9,330.80 : x
2. Step 2: Convert to fraction form
   16,884.56/23,300.78 = 9,330.80/x
3. Step 3: Cross multiply
   16,884.56x = 23,300.78 × 9,330.80
4. Step 4: Simplify right side
   16,884.56x = 217,414,918.02
5. Step 5: Solve for x
   x = 217,414,918.02/16,884.56
6. Step 6: Final answer
   x = 12,876.55