Finding the Fourth Proportional to 12,066.75, 16,636.58 and 7,810.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,066.75 : 16,636.58 = 7,810.27 : x
2. Step 2: Convert to fraction form
   12,066.75/16,636.58 = 7,810.27/x
3. Step 3: Cross multiply
   12,066.75x = 16,636.58 × 7,810.27
4. Step 4: Simplify right side
   12,066.75x = 129,936,181.68
5. Step 5: Solve for x
   x = 129,936,181.68/12,066.75
6. Step 6: Final answer
   x = 10,768.12