Finding the Fourth Proportional to 9,175.75, 12,662.06 and 5,196.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,175.75 : 12,662.06 = 5,196.89 : x
2. Step 2: Convert to fraction form
   9,175.75/12,662.06 = 5,196.89/x
3. Step 3: Cross multiply
   9,175.75x = 12,662.06 × 5,196.89
4. Step 4: Simplify right side
   9,175.75x = 65,803,338.66
5. Step 5: Solve for x
   x = 65,803,338.66/9,175.75
6. Step 6: Final answer
   x = 7,171.44