Finding the Fourth Proportional to 16,906.25, 23,317.95 and 14,994.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,906.25 : 23,317.95 = 14,994.31 : x
2. Step 2: Convert to fraction form
   16,906.25/23,317.95 = 14,994.31/x
3. Step 3: Cross multiply
   16,906.25x = 23,317.95 × 14,994.31
4. Step 4: Simplify right side
   16,906.25x = 349,636,568.80
5. Step 5: Solve for x
   x = 349,636,568.80/16,906.25
6. Step 6: Final answer
   x = 20,680.91