Finding the Fourth Proportional to 14,814.10, 20,443.76 and 8,100.15

Step by Step Solution

1. Step 1: Write the proportion equation
   14,814.10 : 20,443.76 = 8,100.15 : x
2. Step 2: Convert to fraction form
   14,814.10/20,443.76 = 8,100.15/x
3. Step 3: Cross multiply
   14,814.10x = 20,443.76 × 8,100.15
4. Step 4: Simplify right side
   14,814.10x = 165,597,522.56
5. Step 5: Solve for x
   x = 165,597,522.56/14,814.10
6. Step 6: Final answer
   x = 11,178.37