Finding the Fourth Proportional to 16,878.56, 23,292.48 and 9,426.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,878.56 : 23,292.48 = 9,426.56 : x
2. Step 2: Convert to fraction form
   16,878.56/23,292.48 = 9,426.56/x
3. Step 3: Cross multiply
   16,878.56x = 23,292.48 × 9,426.56
4. Step 4: Simplify right side
   16,878.56x = 219,567,960.27
5. Step 5: Solve for x
   x = 219,567,960.27/16,878.56
6. Step 6: Final answer
   x = 13,008.69