Finding the Fourth Proportional to 22,384.81, 30,889.52 and 12,954.79

Step by Step Solution

1. Step 1: Write the proportion equation
   22,384.81 : 30,889.52 = 12,954.79 : x
2. Step 2: Convert to fraction form
   22,384.81/30,889.52 = 12,954.79/x
3. Step 3: Cross multiply
   22,384.81x = 30,889.52 × 12,954.79
4. Step 4: Simplify right side
   22,384.81x = 400,167,180.03
5. Step 5: Solve for x
   x = 400,167,180.03/22,384.81
6. Step 6: Final answer
   x = 17,876.73