Finding the Fourth Proportional to 8,967.36, 13,510.88 and 8,124.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,967.36 : 13,510.88 = 8,124.12 : x
2. Step 2: Convert to fraction form
   8,967.36/13,510.88 = 8,124.12/x
3. Step 3: Cross multiply
   8,967.36x = 13,510.88 × 8,124.12
4. Step 4: Simplify right side
   8,967.36x = 109,763,969.81
5. Step 5: Solve for x
   x = 109,763,969.81/8,967.36
6. Step 6: Final answer
   x = 12,240.39