Finding the Fourth Proportional to 300,200.88, 450,456.56 and 131,839.56

Step by Step Solution

1. Step 1: Write the proportion equation
   300,200.88 : 450,456.56 = 131,839.56 : x
2. Step 2: Convert to fraction form
   300,200.88/450,456.56 = 131,839.56/x
3. Step 3: Cross multiply
   300,200.88x = 450,456.56 × 131,839.56
4. Step 4: Simplify right side
   300,200.88x = 59,387,994,669.51
5. Step 5: Solve for x
   x = 59,387,994,669.51/300,200.88
6. Step 6: Final answer
   x = 197,827.52