Finding the Fourth Proportional to 22,380.17, 30,885.37 and 12,308.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,380.17 : 30,885.37 = 12,308.96 : x
2. Step 2: Convert to fraction form
   22,380.17/30,885.37 = 12,308.96/x
3. Step 3: Cross multiply
   22,380.17x = 30,885.37 × 12,308.96
4. Step 4: Simplify right side
   22,380.17x = 380,166,830.36
5. Step 5: Solve for x
   x = 380,166,830.36/22,380.17
6. Step 6: Final answer
   x = 16,986.78