Finding the Fourth Proportional to 22,684.82, 31,305.08 and 12,613.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,684.82 : 31,305.08 = 12,613.15 : x
2. Step 2: Convert to fraction form
   22,684.82/31,305.08 = 12,613.15/x
3. Step 3: Cross multiply
   22,684.82x = 31,305.08 × 12,613.15
4. Step 4: Simplify right side
   22,684.82x = 394,855,669.52
5. Step 5: Solve for x
   x = 394,855,669.52/22,684.82
6. Step 6: Final answer
   x = 17,406.17