Finding the Fourth Proportional to 22,369.68, 30,870.30 and 12,297.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,369.68 : 30,870.30 = 12,297.78 : x
2. Step 2: Convert to fraction form
   22,369.68/30,870.30 = 12,297.78/x
3. Step 3: Cross multiply
   22,369.68x = 30,870.30 × 12,297.78
4. Step 4: Simplify right side
   22,369.68x = 379,636,157.93
5. Step 5: Solve for x
   x = 379,636,157.93/22,369.68
6. Step 6: Final answer
   x = 16,971.01