Finding the Fourth Proportional to 22,696.92, 31,321.34 and 12,624.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,696.92 : 31,321.34 = 12,624.12 : x
2. Step 2: Convert to fraction form
   22,696.92/31,321.34 = 12,624.12/x
3. Step 3: Cross multiply
   22,696.92x = 31,321.34 × 12,624.12
4. Step 4: Simplify right side
   22,696.92x = 395,404,354.72
5. Step 5: Solve for x
   x = 395,404,354.72/22,696.92
6. Step 6: Final answer
   x = 17,421.06