Finding the Fourth Proportional to 22,217.38, 30,659.90 and 12,145.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22,217.38 : 30,659.90 = 12,145.82 : x
2. Step 2: Convert to fraction form
   22,217.38/30,659.90 = 12,145.82/x
3. Step 3: Cross multiply
   22,217.38x = 30,659.90 × 12,145.82
4. Step 4: Simplify right side
   22,217.38x = 372,389,733.63
5. Step 5: Solve for x
   x = 372,389,733.63/22,217.38
6. Step 6: Final answer
   x = 16,761.19