Finding the Fourth Proportional to 8,339.43, 12,499.59 and 2,791.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,339.43 : 12,499.59 = 2,791.47 : x
2. Step 2: Convert to fraction form
   8,339.43/12,499.59 = 2,791.47/x
3. Step 3: Cross multiply
   8,339.43x = 12,499.59 × 2,791.47
4. Step 4: Simplify right side
   8,339.43x = 34,892,230.50
5. Step 5: Solve for x
   x = 34,892,230.50/8,339.43
6. Step 6: Final answer
   x = 4,184.01