Finding the Fourth Proportional to 22,398.89, 30,908.88 and 13,323.75

Step by Step Solution

1. Step 1: Write the proportion equation
   22,398.89 : 30,908.88 = 13,323.75 : x
2. Step 2: Convert to fraction form
   22,398.89/30,908.88 = 13,323.75/x
3. Step 3: Cross multiply
   22,398.89x = 30,908.88 × 13,323.75
4. Step 4: Simplify right side
   22,398.89x = 411,822,272.58
5. Step 5: Solve for x
   x = 411,822,272.58/22,398.89
6. Step 6: Final answer
   x = 18,385.83