Finding the Fourth Proportional to 9,153.54, 12,631.76 and 5,175.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,153.54 : 12,631.76 = 5,175.94 : x
2. Step 2: Convert to fraction form
   9,153.54/12,631.76 = 5,175.94/x
3. Step 3: Cross multiply
   9,153.54x = 12,631.76 × 5,175.94
4. Step 4: Simplify right side
   9,153.54x = 65,381,231.85
5. Step 5: Solve for x
   x = 65,381,231.85/9,153.54
6. Step 6: Final answer
   x = 7,142.73