Finding the Fourth Proportional to 9,151.38, 12,628.94 and 4,959.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,151.38 : 12,628.94 = 4,959.63 : x
2. Step 2: Convert to fraction form
   9,151.38/12,628.94 = 4,959.63/x
3. Step 3: Cross multiply
   9,151.38x = 12,628.94 × 4,959.63
4. Step 4: Simplify right side
   9,151.38x = 62,634,844.89
5. Step 5: Solve for x
   x = 62,634,844.89/9,151.38
6. Step 6: Final answer
   x = 6,844.31