Finding the Fourth Proportional to 8,671.55, 12,983.05 and 5,543.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,671.55 : 12,983.05 = 5,543.69 : x
2. Step 2: Convert to fraction form
   8,671.55/12,983.05 = 5,543.69/x
3. Step 3: Cross multiply
   8,671.55x = 12,983.05 × 5,543.69
4. Step 4: Simplify right side
   8,671.55x = 71,973,946.47
5. Step 5: Solve for x
   x = 71,973,946.47/8,671.55
6. Step 6: Final answer
   x = 8,300.01