Finding the Fourth Proportional to 9,151.25, 12,628.73 and 4,959.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,151.25 : 12,628.73 = 4,959.50 : x
2. Step 2: Convert to fraction form
   9,151.25/12,628.73 = 4,959.50/x
3. Step 3: Cross multiply
   9,151.25x = 12,628.73 × 4,959.50
4. Step 4: Simplify right side
   9,151.25x = 62,632,135.69
5. Step 5: Solve for x
   x = 62,632,135.69/9,151.25
6. Step 6: Final answer
   x = 6,844.11