Finding the Fourth Proportional to 22,382.89, 30,886.25 and 12,311.17

Step by Step Solution

1. Step 1: Write the proportion equation
   22,382.89 : 30,886.25 = 12,311.17 : x
2. Step 2: Convert to fraction form
   22,382.89/30,886.25 = 12,311.17/x
3. Step 3: Cross multiply
   22,382.89x = 30,886.25 × 12,311.17
4. Step 4: Simplify right side
   22,382.89x = 380,245,812.86
5. Step 5: Solve for x
   x = 380,245,812.86/22,382.89
6. Step 6: Final answer
   x = 16,988.24