Finding the Fourth Proportional to 311,042.89, 429,240.06 and 175,078.92

Step by Step Solution

1. Step 1: Write the proportion equation
   311,042.89 : 429,240.06 = 175,078.92 : x
2. Step 2: Convert to fraction form
   311,042.89/429,240.06 = 175,078.92/x
3. Step 3: Cross multiply
   311,042.89x = 429,240.06 × 175,078.92
4. Step 4: Simplify right side
   311,042.89x = 75,150,885,320.71
5. Step 5: Solve for x
   x = 75,150,885,320.71/311,042.89
6. Step 6: Final answer
   x = 241,609.40