Finding the Fourth Proportional to 22,461.57, 30,997.08 and 12,389.49

Step by Step Solution

1. Step 1: Write the proportion equation
   22,461.57 : 30,997.08 = 12,389.49 : x
2. Step 2: Convert to fraction form
   22,461.57/30,997.08 = 12,389.49/x
3. Step 3: Cross multiply
   22,461.57x = 30,997.08 × 12,389.49
4. Step 4: Simplify right side
   22,461.57x = 384,038,012.69
5. Step 5: Solve for x
   x = 384,038,012.69/22,461.57
6. Step 6: Final answer
   x = 17,097.56