Finding the Fourth Proportional to 9,154.46, 12,632.82 and 5,174.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,154.46 : 12,632.82 = 5,174.72 : x
2. Step 2: Convert to fraction form
   9,154.46/12,632.82 = 5,174.72/x
3. Step 3: Cross multiply
   9,154.46x = 12,632.82 × 5,174.72
4. Step 4: Simplify right side
   9,154.46x = 65,371,306.31
5. Step 5: Solve for x
   x = 65,371,306.31/9,154.46
6. Step 6: Final answer
   x = 7,140.92