Finding the Fourth Proportional to 22,880.28, 31,575.02 and 13,449

Step by Step Solution

1. Step 1: Write the proportion equation
   22,880.28 : 31,575.02 = 13,449 : x
2. Step 2: Convert to fraction form
   22,880.28/31,575.02 = 13,449/x
3. Step 3: Cross multiply
   22,880.28x = 31,575.02 × 13,449
4. Step 4: Simplify right side
   22,880.28x = 424,652,443.98
5. Step 5: Solve for x
   x = 424,652,443.98/22,880.28
6. Step 6: Final answer
   x = 18,559.76