Finding the Fourth Proportional to 10,688.72, 16,035.18 and 3,291.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,688.72 : 16,035.18 = 3,291.92 : x
2. Step 2: Convert to fraction form
   10,688.72/16,035.18 = 3,291.92/x
3. Step 3: Cross multiply
   10,688.72x = 16,035.18 × 3,291.92
4. Step 4: Simplify right side
   10,688.72x = 52,786,529.75
5. Step 5: Solve for x
   x = 52,786,529.75/10,688.72
6. Step 6: Final answer
   x = 4,938.53