Finding the Fourth Proportional to 16,422.89, 22,663.80 and 9,349.34

Step by Step Solution

1. Step 1: Write the proportion equation
   16,422.89 : 22,663.80 = 9,349.34 : x
2. Step 2: Convert to fraction form
   16,422.89/22,663.80 = 9,349.34/x
3. Step 3: Cross multiply
   16,422.89x = 22,663.80 × 9,349.34
4. Step 4: Simplify right side
   16,422.89x = 211,891,458.57
5. Step 5: Solve for x
   x = 211,891,458.57/16,422.89
6. Step 6: Final answer
   x = 12,902.21