Finding the Fourth Proportional to 10,643.68, 14,688.57 and 5,928.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,643.68 : 14,688.57 = 5,928.27 : x
2. Step 2: Convert to fraction form
   10,643.68/14,688.57 = 5,928.27/x
3. Step 3: Cross multiply
   10,643.68x = 14,688.57 × 5,928.27
4. Step 4: Simplify right side
   10,643.68x = 87,077,808.87
5. Step 5: Solve for x
   x = 87,077,808.87/10,643.68
6. Step 6: Final answer
   x = 8,181.18