Finding the Fourth Proportional to 242,200.80, 363,184.56 and 84,425.76

Step by Step Solution

1. Step 1: Write the proportion equation
   242,200.80 : 363,184.56 = 84,425.76 : x
2. Step 2: Convert to fraction form
   242,200.80/363,184.56 = 84,425.76/x
3. Step 3: Cross multiply
   242,200.80x = 363,184.56 × 84,425.76
4. Step 4: Simplify right side
   242,200.80x = 30,662,132,498.27
5. Step 5: Solve for x
   x = 30,662,132,498.27/242,200.80
6. Step 6: Final answer
   x = 126,597.98