Finding the Fourth Proportional to 300,196.14, 450,449.42 and 131,834.80

Step by Step Solution

1. Step 1: Write the proportion equation
   300,196.14 : 450,449.42 = 131,834.80 : x
2. Step 2: Convert to fraction form
   300,196.14/450,449.42 = 131,834.80/x
3. Step 3: Cross multiply
   300,196.14x = 450,449.42 × 131,834.80
4. Step 4: Simplify right side
   300,196.14x = 59,384,909,195.82
5. Step 5: Solve for x
   x = 59,384,909,195.82/300,196.14
6. Step 6: Final answer
   x = 197,820.36