Finding the Fourth Proportional to 242,390.88, 334,493.55 and 134,958.69

Step by Step Solution

1. Step 1: Write the proportion equation
   242,390.88 : 334,493.55 = 134,958.69 : x
2. Step 2: Convert to fraction form
   242,390.88/334,493.55 = 134,958.69/x
3. Step 3: Cross multiply
   242,390.88x = 334,493.55 × 134,958.69
4. Step 4: Simplify right side
   242,390.88x = 45,142,811,321.45
5. Step 5: Solve for x
   x = 45,142,811,321.45/242,390.88
6. Step 6: Final answer
   x = 186,239.73