Finding the Fourth Proportional to 22,462.44, 30,996.72 and 12,390.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,462.44 : 30,996.72 = 12,390.94 : x
2. Step 2: Convert to fraction form
   22,462.44/30,996.72 = 12,390.94/x
3. Step 3: Cross multiply
   22,462.44x = 30,996.72 × 12,390.94
4. Step 4: Simplify right side
   22,462.44x = 384,078,497.72
5. Step 5: Solve for x
   x = 384,078,497.72/22,462.44
6. Step 6: Final answer
   x = 17,098.70