Finding the Fourth Proportional to 22,332.34, 30,822.42 and 12,906.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,332.34 : 30,822.42 = 12,906.37 : x
2. Step 2: Convert to fraction form
   22,332.34/30,822.42 = 12,906.37/x
3. Step 3: Cross multiply
   22,332.34x = 30,822.42 × 12,906.37
4. Step 4: Simplify right side
   22,332.34x = 397,805,556.82
5. Step 5: Solve for x
   x = 397,805,556.82/22,332.34
6. Step 6: Final answer
   x = 17,812.98