Finding the Fourth Proportional to 8,746.72, 12,154.04 and 8,636.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,746.72 : 12,154.04 = 8,636.32 : x
2. Step 2: Convert to fraction form
   8,746.72/12,154.04 = 8,636.32/x
3. Step 3: Cross multiply
   8,746.72x = 12,154.04 × 8,636.32
4. Step 4: Simplify right side
   8,746.72x = 104,966,178.73
5. Step 5: Solve for x
   x = 104,966,178.73/8,746.72
6. Step 6: Final answer
   x = 12,000.63