Finding the Fourth Proportional to 12,379.89, 17,085.32 and 6,791.97

Step by Step Solution

1. Step 1: Write the proportion equation
   12,379.89 : 17,085.32 = 6,791.97 : x
2. Step 2: Convert to fraction form
   12,379.89/17,085.32 = 6,791.97/x
3. Step 3: Cross multiply
   12,379.89x = 17,085.32 × 6,791.97
4. Step 4: Simplify right side
   12,379.89x = 116,042,980.88
5. Step 5: Solve for x
   x = 116,042,980.88/12,379.89
6. Step 6: Final answer
   x = 9,373.51