Finding the Fourth Proportional to 22,460.10, 30,994.89 and 12,389.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,460.10 : 30,994.89 = 12,389.18 : x
2. Step 2: Convert to fraction form
   22,460.10/30,994.89 = 12,389.18/x
3. Step 3: Cross multiply
   22,460.10x = 30,994.89 × 12,389.18
4. Step 4: Simplify right side
   22,460.10x = 384,001,116.32
5. Step 5: Solve for x
   x = 384,001,116.32/22,460.10
6. Step 6: Final answer
   x = 17,097.04