Finding the Fourth Proportional to 10,643.86, 14,688.21 and 5,928.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,643.86 : 14,688.21 = 5,928.04 : x
2. Step 2: Convert to fraction form
   10,643.86/14,688.21 = 5,928.04/x
3. Step 3: Cross multiply
   10,643.86x = 14,688.21 × 5,928.04
4. Step 4: Simplify right side
   10,643.86x = 87,072,296.41
5. Step 5: Solve for x
   x = 87,072,296.41/10,643.86
6. Step 6: Final answer
   x = 8,180.52