Finding the Fourth Proportional to 8,522.10, 11,762.69 and 7,636.37

Step by Step Solution

1. Step 1: Write the proportion equation
   8,522.10 : 11,762.69 = 7,636.37 : x
2. Step 2: Convert to fraction form
   8,522.10/11,762.69 = 7,636.37/x
3. Step 3: Cross multiply
   8,522.10x = 11,762.69 × 7,636.37
4. Step 4: Simplify right side
   8,522.10x = 89,824,156.04
5. Step 5: Solve for x
   x = 89,824,156.04/8,522.10
6. Step 6: Final answer
   x = 10,540.14