Finding the Fourth Proportional to 20,106.33, 30,175.89 and 10,248.42

Step by Step Solution

1. Step 1: Write the proportion equation
   20,106.33 : 30,175.89 = 10,248.42 : x
2. Step 2: Convert to fraction form
   20,106.33/30,175.89 = 10,248.42/x
3. Step 3: Cross multiply
   20,106.33x = 30,175.89 × 10,248.42
4. Step 4: Simplify right side
   20,106.33x = 309,255,194.59
5. Step 5: Solve for x
   x = 309,255,194.59/20,106.33
6. Step 6: Final answer
   x = 15,380.99