Finding the Fourth Proportional to 21,817.40, 30,104.98 and 12,384.14

Step by Step Solution

1. Step 1: Write the proportion equation
   21,817.40 : 30,104.98 = 12,384.14 : x
2. Step 2: Convert to fraction form
   21,817.40/30,104.98 = 12,384.14/x
3. Step 3: Cross multiply
   21,817.40x = 30,104.98 × 12,384.14
4. Step 4: Simplify right side
   21,817.40x = 372,824,287.02
5. Step 5: Solve for x
   x = 372,824,287.02/21,817.40
6. Step 6: Final answer
   x = 17,088.39