Finding the Fourth Proportional to 6,887.43, 10,324.89 and 3,188.67

Step by Step Solution

1. Step 1: Write the proportion equation
   6,887.43 : 10,324.89 = 3,188.67 : x
2. Step 2: Convert to fraction form
   6,887.43/10,324.89 = 3,188.67/x
3. Step 3: Cross multiply
   6,887.43x = 10,324.89 × 3,188.67
4. Step 4: Simplify right side
   6,887.43x = 32,922,667.00
5. Step 5: Solve for x
   x = 32,922,667.00/6,887.43
6. Step 6: Final answer
   x = 4,780.11