Finding the Fourth Proportional to 14,648.39, 20,214.81 and 7,934.03

Step by Step Solution

1. Step 1: Write the proportion equation
   14,648.39 : 20,214.81 = 7,934.03 : x
2. Step 2: Convert to fraction form
   14,648.39/20,214.81 = 7,934.03/x
3. Step 3: Cross multiply
   14,648.39x = 20,214.81 × 7,934.03
4. Step 4: Simplify right side
   14,648.39x = 160,384,807.91
5. Step 5: Solve for x
   x = 160,384,807.91/14,648.39
6. Step 6: Final answer
   x = 10,948.98