Finding the Fourth Proportional to 50,662.72, 69,881.70 and 30,505.06

Step by Step Solution

1. Step 1: Write the proportion equation
   50,662.72 : 69,881.70 = 30,505.06 : x
2. Step 2: Convert to fraction form
   50,662.72/69,881.70 = 30,505.06/x
3. Step 3: Cross multiply
   50,662.72x = 69,881.70 × 30,505.06
4. Step 4: Simplify right side
   50,662.72x = 2,131,745,451.40
5. Step 5: Solve for x
   x = 2,131,745,451.40/50,662.72
6. Step 6: Final answer
   x = 42,077.20