Finding the Fourth Proportional to 8,087.03, 12,131.76 and 2,891.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,087.03 : 12,131.76 = 2,891.69 : x
2. Step 2: Convert to fraction form
   8,087.03/12,131.76 = 2,891.69/x
3. Step 3: Cross multiply
   8,087.03x = 12,131.76 × 2,891.69
4. Step 4: Simplify right side
   8,087.03x = 35,081,289.07
5. Step 5: Solve for x
   x = 35,081,289.07/8,087.03
6. Step 6: Final answer
   x = 4,337.97