Finding the Fourth Proportional to 32,315.82, 48,474.33 and 10,128.70

Step by Step Solution

1. Step 1: Write the proportion equation
   32,315.82 : 48,474.33 = 10,128.70 : x
2. Step 2: Convert to fraction form
   32,315.82/48,474.33 = 10,128.70/x
3. Step 3: Cross multiply
   32,315.82x = 48,474.33 × 10,128.70
4. Step 4: Simplify right side
   32,315.82x = 490,981,946.27
5. Step 5: Solve for x
   x = 490,981,946.27/32,315.82
6. Step 6: Final answer
   x = 15,193.24