Finding the Fourth Proportional to 9,155.95, 12,634.71 and 5,176.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,155.95 : 12,634.71 = 5,176.84 : x
2. Step 2: Convert to fraction form
   9,155.95/12,634.71 = 5,176.84/x
3. Step 3: Cross multiply
   9,155.95x = 12,634.71 × 5,176.84
4. Step 4: Simplify right side
   9,155.95x = 65,407,872.12
5. Step 5: Solve for x
   x = 65,407,872.12/9,155.95
6. Step 6: Final answer
   x = 7,143.76