Finding the Fourth Proportional to 22,419.65, 30,936.71 and 12,347.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,419.65 : 30,936.71 = 12,347.48 : x
2. Step 2: Convert to fraction form
   22,419.65/30,936.71 = 12,347.48/x
3. Step 3: Cross multiply
   22,419.65x = 30,936.71 × 12,347.48
4. Step 4: Simplify right side
   22,419.65x = 381,990,516.20
5. Step 5: Solve for x
   x = 381,990,516.20/22,419.65
6. Step 6: Final answer
   x = 17,038.20