Finding the Fourth Proportional to 10,555.65, 14,573.93 and 9,667.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,555.65 : 14,573.93 = 9,667.89 : x
2. Step 2: Convert to fraction form
   10,555.65/14,573.93 = 9,667.89/x
3. Step 3: Cross multiply
   10,555.65x = 14,573.93 × 9,667.89
4. Step 4: Simplify right side
   10,555.65x = 140,899,103.77
5. Step 5: Solve for x
   x = 140,899,103.77/10,555.65
6. Step 6: Final answer
   x = 13,348.22