Finding the Fourth Proportional to 22,407.37, 30,921.05 and 12,335.55

Step by Step Solution

1. Step 1: Write the proportion equation
   22,407.37 : 30,921.05 = 12,335.55 : x
2. Step 2: Convert to fraction form
   22,407.37/30,921.05 = 12,335.55/x
3. Step 3: Cross multiply
   22,407.37x = 30,921.05 × 12,335.55
4. Step 4: Simplify right side
   22,407.37x = 381,428,096.65
5. Step 5: Solve for x
   x = 381,428,096.65/22,407.37
6. Step 6: Final answer
   x = 17,022.44