Finding the Fourth Proportional to 16,521.74, 22,818.94 and 10,881.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,521.74 : 22,818.94 = 10,881.72 : x
2. Step 2: Convert to fraction form
   16,521.74/22,818.94 = 10,881.72/x
3. Step 3: Cross multiply
   16,521.74x = 22,818.94 × 10,881.72
4. Step 4: Simplify right side
   16,521.74x = 248,309,315.78
5. Step 5: Solve for x
   x = 248,309,315.78/16,521.74
6. Step 6: Final answer
   x = 15,029.25