Finding the Fourth Proportional to 8,636.83, 12,969.69 and 7,550.62

Step by Step Solution

1. Step 1: Write the proportion equation
   8,636.83 : 12,969.69 = 7,550.62 : x
2. Step 2: Convert to fraction form
   8,636.83/12,969.69 = 7,550.62/x
3. Step 3: Cross multiply
   8,636.83x = 12,969.69 × 7,550.62
4. Step 4: Simplify right side
   8,636.83x = 97,929,200.71
5. Step 5: Solve for x
   x = 97,929,200.71/8,636.83
6. Step 6: Final answer
   x = 11,338.56