Finding the Fourth Proportional to 9,155.03, 12,633.87 and 5,176.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,155.03 : 12,633.87 = 5,176.15 : x
2. Step 2: Convert to fraction form
   9,155.03/12,633.87 = 5,176.15/x
3. Step 3: Cross multiply
   9,155.03x = 12,633.87 × 5,176.15
4. Step 4: Simplify right side
   9,155.03x = 65,394,865.09
5. Step 5: Solve for x
   x = 65,394,865.09/9,155.03
6. Step 6: Final answer
   x = 7,143.06