Finding the Fourth Proportional to 22,460.82, 30,995.70 and 12,389.64

Step by Step Solution

1. Step 1: Write the proportion equation
   22,460.82 : 30,995.70 = 12,389.64 : x
2. Step 2: Convert to fraction form
   22,460.82/30,995.70 = 12,389.64/x
3. Step 3: Cross multiply
   22,460.82x = 30,995.70 × 12,389.64
4. Step 4: Simplify right side
   22,460.82x = 384,025,564.55
5. Step 5: Solve for x
   x = 384,025,564.55/22,460.82
6. Step 6: Final answer
   x = 17,097.58