Finding the Fourth Proportional to 11,870.14, 16,394.24 and 8,086.74

Step by Step Solution

1. Step 1: Write the proportion equation
   11,870.14 : 16,394.24 = 8,086.74 : x
2. Step 2: Convert to fraction form
   11,870.14/16,394.24 = 8,086.74/x
3. Step 3: Cross multiply
   11,870.14x = 16,394.24 × 8,086.74
4. Step 4: Simplify right side
   11,870.14x = 132,575,956.38
5. Step 5: Solve for x
   x = 132,575,956.38/11,870.14
6. Step 6: Final answer
   x = 11,168.86