Finding the Fourth Proportional to 16,805.76, 23,193.92 and 10,854.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,805.76 : 23,193.92 = 10,854.72 : x
2. Step 2: Convert to fraction form
   16,805.76/23,193.92 = 10,854.72/x
3. Step 3: Cross multiply
   16,805.76x = 23,193.92 × 10,854.72
4. Step 4: Simplify right side
   16,805.76x = 251,763,507.30
5. Step 5: Solve for x
   x = 251,763,507.30/16,805.76
6. Step 6: Final answer
   x = 14,980.79