Finding the Fourth Proportional to 242,441.32, 363,564.76 and 142,627.72

Step by Step Solution

1. Step 1: Write the proportion equation
   242,441.32 : 363,564.76 = 142,627.72 : x
2. Step 2: Convert to fraction form
   242,441.32/363,564.76 = 142,627.72/x
3. Step 3: Cross multiply
   242,441.32x = 363,564.76 × 142,627.72
4. Step 4: Simplify right side
   242,441.32x = 51,854,412,791.15
5. Step 5: Solve for x
   x = 51,854,412,791.15/242,441.32
6. Step 6: Final answer
   x = 213,884.39