Finding the Fourth Proportional to 9,154.18, 12,632.55 and 5,175.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,154.18 : 12,632.55 = 5,175.16 : x
2. Step 2: Convert to fraction form
   9,154.18/12,632.55 = 5,175.16/x
3. Step 3: Cross multiply
   9,154.18x = 12,632.55 × 5,175.16
4. Step 4: Simplify right side
   9,154.18x = 65,375,467.46
5. Step 5: Solve for x
   x = 65,375,467.46/9,154.18
6. Step 6: Final answer
   x = 7,141.60