Finding the Fourth Proportional to 16,972.83, 23,422.52 and 9,419.27

Step by Step Solution

1. Step 1: Write the proportion equation
   16,972.83 : 23,422.52 = 9,419.27 : x
2. Step 2: Convert to fraction form
   16,972.83/23,422.52 = 9,419.27/x
3. Step 3: Cross multiply
   16,972.83x = 23,422.52 × 9,419.27
4. Step 4: Simplify right side
   16,972.83x = 220,623,039.96
5. Step 5: Solve for x
   x = 220,623,039.96/16,972.83
6. Step 6: Final answer
   x = 12,998.60