Finding the Fourth Proportional to 22,235.22, 30,680.06 and 13,279.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,235.22 : 30,680.06 = 13,279.46 : x
2. Step 2: Convert to fraction form
   22,235.22/30,680.06 = 13,279.46/x
3. Step 3: Cross multiply
   22,235.22x = 30,680.06 × 13,279.46
4. Step 4: Simplify right side
   22,235.22x = 407,414,629.57
5. Step 5: Solve for x
   x = 407,414,629.57/22,235.22
6. Step 6: Final answer
   x = 18,322.94