Finding the Fourth Proportional to 12,948.26, 19,426.46 and 4,628.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,948.26 : 19,426.46 = 4,628.09 : x
2. Step 2: Convert to fraction form
   12,948.26/19,426.46 = 4,628.09/x
3. Step 3: Cross multiply
   12,948.26x = 19,426.46 × 4,628.09
4. Step 4: Simplify right side
   12,948.26x = 89,907,430.69
5. Step 5: Solve for x
   x = 89,907,430.69/12,948.26
6. Step 6: Final answer
   x = 6,943.59