Finding the Fourth Proportional to 8,387.94, 12,564.12 and 5,743.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,387.94 : 12,564.12 = 5,743.04 : x
2. Step 2: Convert to fraction form
   8,387.94/12,564.12 = 5,743.04/x
3. Step 3: Cross multiply
   8,387.94x = 12,564.12 × 5,743.04
4. Step 4: Simplify right side
   8,387.94x = 72,156,180.90
5. Step 5: Solve for x
   x = 72,156,180.90/8,387.94
6. Step 6: Final answer
   x = 8,602.37