Finding the Fourth Proportional to 22,422, 30,942.36 and 12,996.03

Step by Step Solution

1. Step 1: Write the proportion equation
   22,422 : 30,942.36 = 12,996.03 : x
2. Step 2: Convert to fraction form
   22,422/30,942.36 = 12,996.03/x
3. Step 3: Cross multiply
   22,422x = 30,942.36 × 12,996.03
4. Step 4: Simplify right side
   22,422x = 402,127,838.83
5. Step 5: Solve for x
   x = 402,127,838.83/22,422
6. Step 6: Final answer
   x = 17,934.52