Finding the Fourth Proportional to 11,850.76, 17,776.68 and 3,086.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,850.76 : 17,776.68 = 3,086.56 : x
2. Step 2: Convert to fraction form
   11,850.76/17,776.68 = 3,086.56/x
3. Step 3: Cross multiply
   11,850.76x = 17,776.68 × 3,086.56
4. Step 4: Simplify right side
   11,850.76x = 54,868,789.42
5. Step 5: Solve for x
   x = 54,868,789.42/11,850.76
6. Step 6: Final answer
   x = 4,629.98