Finding the Fourth Proportional to 16,970.06, 23,418.81 and 9,416.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,970.06 : 23,418.81 = 9,416.42 : x
2. Step 2: Convert to fraction form
   16,970.06/23,418.81 = 9,416.42/x
3. Step 3: Cross multiply
   16,970.06x = 23,418.81 × 9,416.42
4. Step 4: Simplify right side
   16,970.06x = 220,521,350.86
5. Step 5: Solve for x
   x = 220,521,350.86/16,970.06
6. Step 6: Final answer
   x = 12,994.73