Finding the Fourth Proportional to 9,151.17, 12,628.56 and 4,959.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,151.17 : 12,628.56 = 4,959.42 : x
2. Step 2: Convert to fraction form
   9,151.17/12,628.56 = 4,959.42/x
3. Step 3: Cross multiply
   9,151.17x = 12,628.56 × 4,959.42
4. Step 4: Simplify right side
   9,151.17x = 62,630,333.04
5. Step 5: Solve for x
   x = 62,630,333.04/9,151.17
6. Step 6: Final answer
   x = 6,843.97