Finding the Fourth Proportional to 14,814.18, 20,441.61 and 9,516.15

Step by Step Solution

1. Step 1: Write the proportion equation
   14,814.18 : 20,441.61 = 9,516.15 : x
2. Step 2: Convert to fraction form
   14,814.18/20,441.61 = 9,516.15/x
3. Step 3: Cross multiply
   14,814.18x = 20,441.61 × 9,516.15
4. Step 4: Simplify right side
   14,814.18x = 194,525,427.00
5. Step 5: Solve for x
   x = 194,525,427.00/14,814.18
6. Step 6: Final answer
   x = 13,131.03