Finding the Fourth Proportional to 16,521.75, 22,784.89 and 10,854.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,521.75 : 22,784.89 = 10,854.25 : x
2. Step 2: Convert to fraction form
   16,521.75/22,784.89 = 10,854.25/x
3. Step 3: Cross multiply
   16,521.75x = 22,784.89 × 10,854.25
4. Step 4: Simplify right side
   16,521.75x = 247,312,892.28
5. Step 5: Solve for x
   x = 247,312,892.28/16,521.75
6. Step 6: Final answer
   x = 14,968.93