Finding the Fourth Proportional to 8,473.92, 12,715.86 and 3,543.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,473.92 : 12,715.86 = 3,543.18 : x
2. Step 2: Convert to fraction form
   8,473.92/12,715.86 = 3,543.18/x
3. Step 3: Cross multiply
   8,473.92x = 12,715.86 × 3,543.18
4. Step 4: Simplify right side
   8,473.92x = 45,054,580.83
5. Step 5: Solve for x
   x = 45,054,580.83/8,473.92
6. Step 6: Final answer
   x = 5,316.85