Finding the Fourth Proportional to 10,644.02, 14,689.21 and 5,928.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,644.02 : 14,689.21 = 5,928.31 : x
2. Step 2: Convert to fraction form
   10,644.02/14,689.21 = 5,928.31/x
3. Step 3: Cross multiply
   10,644.02x = 14,689.21 × 5,928.31
4. Step 4: Simplify right side
   10,644.02x = 87,082,111.45
5. Step 5: Solve for x
   x = 87,082,111.45/10,644.02
6. Step 6: Final answer
   x = 8,181.31