Finding the Fourth Proportional to 22,376.30, 30,881.00 and 12,819.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,376.30 : 30,881.00 = 12,819.22 : x
2. Step 2: Convert to fraction form
   22,376.30/30,881.00 = 12,819.22/x
3. Step 3: Cross multiply
   22,376.30x = 30,881.00 × 12,819.22
4. Step 4: Simplify right side
   22,376.30x = 395,870,287.67
5. Step 5: Solve for x
   x = 395,870,287.67/22,376.30
6. Step 6: Final answer
   x = 17,691.50