Finding the Fourth Proportional to 8,118.37, 12,181.83 and 5,761.67

Step by Step Solution

1. Step 1: Write the proportion equation
   8,118.37 : 12,181.83 = 5,761.67 : x
2. Step 2: Convert to fraction form
   8,118.37/12,181.83 = 5,761.67/x
3. Step 3: Cross multiply
   8,118.37x = 12,181.83 × 5,761.67
4. Step 4: Simplify right side
   8,118.37x = 70,187,670.46
5. Step 5: Solve for x
   x = 70,187,670.46/8,118.37
6. Step 6: Final answer
   x = 8,645.54