Finding the Fourth Proportional to 22,667.18, 31,279.70 and 12,596.32

Step by Step Solution

1. Step 1: Write the proportion equation
   22,667.18 : 31,279.70 = 12,596.32 : x
2. Step 2: Convert to fraction form
   22,667.18/31,279.70 = 12,596.32/x
3. Step 3: Cross multiply
   22,667.18x = 31,279.70 × 12,596.32
4. Step 4: Simplify right side
   22,667.18x = 394,008,891.32
5. Step 5: Solve for x
   x = 394,008,891.32/22,667.18
6. Step 6: Final answer
   x = 17,382.35