Finding the Fourth Proportional to 14,456.28, 21,685.86 and 6,667.32

Step by Step Solution

1. Step 1: Write the proportion equation
   14,456.28 : 21,685.86 = 6,667.32 : x
2. Step 2: Convert to fraction form
   14,456.28/21,685.86 = 6,667.32/x
3. Step 3: Cross multiply
   14,456.28x = 21,685.86 × 6,667.32
4. Step 4: Simplify right side
   14,456.28x = 144,586,568.10
5. Step 5: Solve for x
   x = 144,586,568.10/14,456.28
6. Step 6: Final answer
   x = 10,001.64