Finding the Fourth Proportional to 16,416.10, 22,654.78 and 9,342.37

Step by Step Solution

1. Step 1: Write the proportion equation
   16,416.10 : 22,654.78 = 9,342.37 : x
2. Step 2: Convert to fraction form
   16,416.10/22,654.78 = 9,342.37/x
3. Step 3: Cross multiply
   16,416.10x = 22,654.78 × 9,342.37
4. Step 4: Simplify right side
   16,416.10x = 211,649,200.40
5. Step 5: Solve for x
   x = 211,649,200.40/16,416.10
6. Step 6: Final answer
   x = 12,892.79