Finding the Fourth Proportional to 242,498.72, 363,757.76 and 124,138.24

Step by Step Solution

1. Step 1: Write the proportion equation
   242,498.72 : 363,757.76 = 124,138.24 : x
2. Step 2: Convert to fraction form
   242,498.72/363,757.76 = 124,138.24/x
3. Step 3: Cross multiply
   242,498.72x = 363,757.76 × 124,138.24
4. Step 4: Simplify right side
   242,498.72x = 45,156,248,112.74
5. Step 5: Solve for x
   x = 45,156,248,112.74/242,498.72
6. Step 6: Final answer
   x = 186,212.32