Finding the Fourth Proportional to 22,815.55, 31,484.51 and 12,743.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,815.55 : 31,484.51 = 12,743.94 : x
2. Step 2: Convert to fraction form
   22,815.55/31,484.51 = 12,743.94/x
3. Step 3: Cross multiply
   22,815.55x = 31,484.51 × 12,743.94
4. Step 4: Simplify right side
   22,815.55x = 401,236,706.37
5. Step 5: Solve for x
   x = 401,236,706.37/22,815.55
6. Step 6: Final answer
   x = 17,586.11