Finding the Fourth Proportional to 22,693.96, 31,317.69 and 12,622.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,693.96 : 31,317.69 = 12,622.15 : x
2. Step 2: Convert to fraction form
   22,693.96/31,317.69 = 12,622.15/x
3. Step 3: Cross multiply
   22,693.96x = 31,317.69 × 12,622.15
4. Step 4: Simplify right side
   22,693.96x = 395,296,580.83
5. Step 5: Solve for x
   x = 395,296,580.83/22,693.96
6. Step 6: Final answer
   x = 17,418.58