Finding the Fourth Proportional to 22,397.94, 30,901.74 and 12,959.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22,397.94 : 30,901.74 = 12,959.82 : x
2. Step 2: Convert to fraction form
   22,397.94/30,901.74 = 12,959.82/x
3. Step 3: Cross multiply
   22,397.94x = 30,901.74 × 12,959.82
4. Step 4: Simplify right side
   22,397.94x = 400,480,988.09
5. Step 5: Solve for x
   x = 400,480,988.09/22,397.94
6. Step 6: Final answer
   x = 17,880.26