Finding the Fourth Proportional to 14,499.05, 20,010.09 and 8,126.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,499.05 : 20,010.09 = 8,126.72 : x
2. Step 2: Convert to fraction form
   14,499.05/20,010.09 = 8,126.72/x
3. Step 3: Cross multiply
   14,499.05x = 20,010.09 × 8,126.72
4. Step 4: Simplify right side
   14,499.05x = 162,616,298.55
5. Step 5: Solve for x
   x = 162,616,298.55/14,499.05
6. Step 6: Final answer
   x = 11,215.66