Finding the Fourth Proportional to 20,547.98, 30,793.62 and 10,667.60

Step by Step Solution

1. Step 1: Write the proportion equation
   20,547.98 : 30,793.62 = 10,667.60 : x
2. Step 2: Convert to fraction form
   20,547.98/30,793.62 = 10,667.60/x
3. Step 3: Cross multiply
   20,547.98x = 30,793.62 × 10,667.60
4. Step 4: Simplify right side
   20,547.98x = 328,494,020.71
5. Step 5: Solve for x
   x = 328,494,020.71/20,547.98
6. Step 6: Final answer
   x = 15,986.68