Finding the Fourth Proportional to 16,521.74, 22,784.88 and 10,854.24

Step by Step Solution

1. Step 1: Write the proportion equation
   16,521.74 : 22,784.88 = 10,854.24 : x
2. Step 2: Convert to fraction form
   16,521.74/22,784.88 = 10,854.24/x
3. Step 3: Cross multiply
   16,521.74x = 22,784.88 × 10,854.24
4. Step 4: Simplify right side
   16,521.74x = 247,312,555.89
5. Step 5: Solve for x
   x = 247,312,555.89/16,521.74
6. Step 6: Final answer
   x = 14,968.92