Finding the Fourth Proportional to 16,678.63, 23,016.16 and 9,124.94

Step by Step Solution

1. Step 1: Write the proportion equation
   16,678.63 : 23,016.16 = 9,124.94 : x
2. Step 2: Convert to fraction form
   16,678.63/23,016.16 = 9,124.94/x
3. Step 3: Cross multiply
   16,678.63x = 23,016.16 × 9,124.94
4. Step 4: Simplify right side
   16,678.63x = 210,021,079.03
5. Step 5: Solve for x
   x = 210,021,079.03/16,678.63
6. Step 6: Final answer
   x = 12,592.23