Finding the Fourth Proportional to 9,155.53, 12,634.28 and 5,176.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,155.53 : 12,634.28 = 5,176.73 : x
2. Step 2: Convert to fraction form
   9,155.53/12,634.28 = 5,176.73/x
3. Step 3: Cross multiply
   9,155.53x = 12,634.28 × 5,176.73
4. Step 4: Simplify right side
   9,155.53x = 65,404,232.19
5. Step 5: Solve for x
   x = 65,404,232.19/9,155.53
6. Step 6: Final answer
   x = 7,143.69