Finding the Fourth Proportional to 22,382.42, 30,885.98 and 12,949.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,382.42 : 30,885.98 = 12,949.16 : x
2. Step 2: Convert to fraction form
   22,382.42/30,885.98 = 12,949.16/x
3. Step 3: Cross multiply
   22,382.42x = 30,885.98 × 12,949.16
4. Step 4: Simplify right side
   22,382.42x = 399,947,496.78
5. Step 5: Solve for x
   x = 399,947,496.78/22,382.42
6. Step 6: Final answer
   x = 17,868.82