Finding the Fourth Proportional to 22,968.76, 34,452.78 and 13,087

Step by Step Solution

1. Step 1: Write the proportion equation
   22,968.76 : 34,452.78 = 13,087 : x
2. Step 2: Convert to fraction form
   22,968.76/34,452.78 = 13,087/x
3. Step 3: Cross multiply
   22,968.76x = 34,452.78 × 13,087
4. Step 4: Simplify right side
   22,968.76x = 450,883,531.86
5. Step 5: Solve for x
   x = 450,883,531.86/22,968.76
6. Step 6: Final answer
   x = 19,630.29