Finding the Fourth Proportional to 22,387.72, 30,893.86 and 12,314.54

Step by Step Solution

1. Step 1: Write the proportion equation
   22,387.72 : 30,893.86 = 12,314.54 : x
2. Step 2: Convert to fraction form
   22,387.72/30,893.86 = 12,314.54/x
3. Step 3: Cross multiply
   22,387.72x = 30,893.86 × 12,314.54
4. Step 4: Simplify right side
   22,387.72x = 380,443,674.72
5. Step 5: Solve for x
   x = 380,443,674.72/22,387.72
6. Step 6: Final answer
   x = 16,993.41