Finding the Fourth Proportional to 16,830.73, 23,217.86 and 12,844.92

Step by Step Solution

1. Step 1: Write the proportion equation
   16,830.73 : 23,217.86 = 12,844.92 : x
2. Step 2: Convert to fraction form
   16,830.73/23,217.86 = 12,844.92/x
3. Step 3: Cross multiply
   16,830.73x = 23,217.86 × 12,844.92
4. Step 4: Simplify right side
   16,830.73x = 298,231,586.38
5. Step 5: Solve for x
   x = 298,231,586.38/16,830.73
6. Step 6: Final answer
   x = 17,719.47