Finding the Fourth Proportional to 16,401.08, 22,640.82 and 11,111.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,401.08 : 22,640.82 = 11,111.96 : x
2. Step 2: Convert to fraction form
   16,401.08/22,640.82 = 11,111.96/x
3. Step 3: Cross multiply
   16,401.08x = 22,640.82 × 11,111.96
4. Step 4: Simplify right side
   16,401.08x = 251,583,886.21
5. Step 5: Solve for x
   x = 251,583,886.21/16,401.08
6. Step 6: Final answer
   x = 15,339.47