Finding the Fourth Proportional to 22,427.25, 30,949.61 and 12,491.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,427.25 : 30,949.61 = 12,491.25 : x
2. Step 2: Convert to fraction form
   22,427.25/30,949.61 = 12,491.25/x
3. Step 3: Cross multiply
   22,427.25x = 30,949.61 × 12,491.25
4. Step 4: Simplify right side
   22,427.25x = 386,599,253.46
5. Step 5: Solve for x
   x = 386,599,253.46/22,427.25
6. Step 6: Final answer
   x = 17,237.93