Finding the Fourth Proportional to 16,380.80, 22,606.10 and 9,308.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,380.80 : 22,606.10 = 9,308.42 : x
2. Step 2: Convert to fraction form
   16,380.80/22,606.10 = 9,308.42/x
3. Step 3: Cross multiply
   16,380.80x = 22,606.10 × 9,308.42
4. Step 4: Simplify right side
   16,380.80x = 210,427,073.36
5. Step 5: Solve for x
   x = 210,427,073.36/16,380.80
6. Step 6: Final answer
   x = 12,845.96