Finding the Fourth Proportional to 22,042.42, 30,418.12 and 12,481.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,042.42 : 30,418.12 = 12,481.60 : x
2. Step 2: Convert to fraction form
   22,042.42/30,418.12 = 12,481.60/x
3. Step 3: Cross multiply
   22,042.42x = 30,418.12 × 12,481.60
4. Step 4: Simplify right side
   22,042.42x = 379,666,806.59
5. Step 5: Solve for x
   x = 379,666,806.59/22,042.42
6. Step 6: Final answer
   x = 17,224.37