Finding the Fourth Proportional to 22,229.84, 30,684.88 and 12,802.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,229.84 : 30,684.88 = 12,802.16 : x
2. Step 2: Convert to fraction form
   22,229.84/30,684.88 = 12,802.16/x
3. Step 3: Cross multiply
   22,229.84x = 30,684.88 × 12,802.16
4. Step 4: Simplify right side
   22,229.84x = 392,832,743.34
5. Step 5: Solve for x
   x = 392,832,743.34/22,229.84
6. Step 6: Final answer
   x = 17,671.42