Finding the Fourth Proportional to 22,460.63, 30,995.42 and 12,389.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,460.63 : 30,995.42 = 12,389.50 : x
2. Step 2: Convert to fraction form
   22,460.63/30,995.42 = 12,389.50/x
3. Step 3: Cross multiply
   22,460.63x = 30,995.42 × 12,389.50
4. Step 4: Simplify right side
   22,460.63x = 384,017,601.11
5. Step 5: Solve for x
   x = 384,017,601.11/22,460.63
6. Step 6: Final answer
   x = 17,097.37