Finding the Fourth Proportional to 42,096.41, 63,147.71 and 12,109.43

Step by Step Solution

1. Step 1: Write the proportion equation
   42,096.41 : 63,147.71 = 12,109.43 : x
2. Step 2: Convert to fraction form
   42,096.41/63,147.71 = 12,109.43/x
3. Step 3: Cross multiply
   42,096.41x = 63,147.71 × 12,109.43
4. Step 4: Simplify right side
   42,096.41x = 764,682,397.62
5. Step 5: Solve for x
   x = 764,682,397.62/42,096.41
6. Step 6: Final answer
   x = 18,165.03