Finding the Fourth Proportional to 22,880.42, 31,574.73 and 12,808.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,880.42 : 31,574.73 = 12,808.94 : x
2. Step 2: Convert to fraction form
   22,880.42/31,574.73 = 12,808.94/x
3. Step 3: Cross multiply
   22,880.42x = 31,574.73 × 12,808.94
4. Step 4: Simplify right side
   22,880.42x = 404,438,889.85
5. Step 5: Solve for x
   x = 404,438,889.85/22,880.42
6. Step 6: Final answer
   x = 17,676.20