Finding the Fourth Proportional to 22,460.62, 30,997.02 and 12,389.02

Step by Step Solution

1. Step 1: Write the proportion equation
   22,460.62 : 30,997.02 = 12,389.02 : x
2. Step 2: Convert to fraction form
   22,460.62/30,997.02 = 12,389.02/x
3. Step 3: Cross multiply
   22,460.62x = 30,997.02 × 12,389.02
4. Step 4: Simplify right side
   22,460.62x = 384,022,700.72
5. Step 5: Solve for x
   x = 384,022,700.72/22,460.62
6. Step 6: Final answer
   x = 17,097.60