Finding the Fourth Proportional to 20,196.17, 30,300.43 and 10,342.42

Step by Step Solution

1. Step 1: Write the proportion equation
   20,196.17 : 30,300.43 = 10,342.42 : x
2. Step 2: Convert to fraction form
   20,196.17/30,300.43 = 10,342.42/x
3. Step 3: Cross multiply
   20,196.17x = 30,300.43 × 10,342.42
4. Step 4: Simplify right side
   20,196.17x = 313,379,773.24
5. Step 5: Solve for x
   x = 313,379,773.24/20,196.17
6. Step 6: Final answer
   x = 15,516.79