Finding the Fourth Proportional to 22,454.69, 30,986.75 and 12,383.55

Step by Step Solution

1. Step 1: Write the proportion equation
   22,454.69 : 30,986.75 = 12,383.55 : x
2. Step 2: Convert to fraction form
   22,454.69/30,986.75 = 12,383.55/x
3. Step 3: Cross multiply
   22,454.69x = 30,986.75 × 12,383.55
4. Step 4: Simplify right side
   22,454.69x = 383,725,967.96
5. Step 5: Solve for x
   x = 383,725,967.96/22,454.69
6. Step 6: Final answer
   x = 17,088.90