Finding the Fourth Proportional to 20,185.58, 30,291.06 and 10,706.42

Step by Step Solution

1. Step 1: Write the proportion equation
   20,185.58 : 30,291.06 = 10,706.42 : x
2. Step 2: Convert to fraction form
   20,185.58/30,291.06 = 10,706.42/x
3. Step 3: Cross multiply
   20,185.58x = 30,291.06 × 10,706.42
4. Step 4: Simplify right side
   20,185.58x = 324,308,810.61
5. Step 5: Solve for x
   x = 324,308,810.61/20,185.58
6. Step 6: Final answer
   x = 16,066.36