Finding the Fourth Proportional to 22,382.25, 30,888.32 and 12,311.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,382.25 : 30,888.32 = 12,311.46 : x
2. Step 2: Convert to fraction form
   22,382.25/30,888.32 = 12,311.46/x
3. Step 3: Cross multiply
   22,382.25x = 30,888.32 × 12,311.46
4. Step 4: Simplify right side
   22,382.25x = 380,280,316.15
5. Step 5: Solve for x
   x = 380,280,316.15/22,382.25
6. Step 6: Final answer
   x = 16,990.27