Finding the Fourth Proportional to 22,369.92, 30,870.31 and 12,298.11

Step by Step Solution

1. Step 1: Write the proportion equation
   22,369.92 : 30,870.31 = 12,298.11 : x
2. Step 2: Convert to fraction form
   22,369.92/30,870.31 = 12,298.11/x
3. Step 3: Cross multiply
   22,369.92x = 30,870.31 × 12,298.11
4. Step 4: Simplify right side
   22,369.92x = 379,646,468.11
5. Step 5: Solve for x
   x = 379,646,468.11/22,369.92
6. Step 6: Final answer
   x = 16,971.29