Finding the Fourth Proportional to 16,233.72, 22,402.62 and 8,781.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,233.72 : 22,402.62 = 8,781.72 : x
2. Step 2: Convert to fraction form
   16,233.72/22,402.62 = 8,781.72/x
3. Step 3: Cross multiply
   16,233.72x = 22,402.62 × 8,781.72
4. Step 4: Simplify right side
   16,233.72x = 196,733,536.11
5. Step 5: Solve for x
   x = 196,733,536.11/16,233.72
6. Step 6: Final answer
   x = 12,118.82