Finding the Fourth Proportional to 50,112.72, 69,144.12 and 29,966.40

Step by Step Solution

1. Step 1: Write the proportion equation
   50,112.72 : 69,144.12 = 29,966.40 : x
2. Step 2: Convert to fraction form
   50,112.72/69,144.12 = 29,966.40/x
3. Step 3: Cross multiply
   50,112.72x = 69,144.12 × 29,966.40
4. Step 4: Simplify right side
   50,112.72x = 2,072,000,357.57
5. Step 5: Solve for x
   x = 2,072,000,357.57/50,112.72
6. Step 6: Final answer
   x = 41,346.79