Finding the Fourth Proportional to 8,089.82, 12,134.72 and 2,543.65

Step by Step Solution

1. Step 1: Write the proportion equation
   8,089.82 : 12,134.72 = 2,543.65 : x
2. Step 2: Convert to fraction form
   8,089.82/12,134.72 = 2,543.65/x
3. Step 3: Cross multiply
   8,089.82x = 12,134.72 × 2,543.65
4. Step 4: Simplify right side
   8,089.82x = 30,866,505.24
5. Step 5: Solve for x
   x = 30,866,505.24/8,089.82
6. Step 6: Final answer
   x = 3,815.47