Finding the Fourth Proportional to 50,356.72, 69,506.88 and 31,242.32

Step by Step Solution

1. Step 1: Write the proportion equation
   50,356.72 : 69,506.88 = 31,242.32 : x
2. Step 2: Convert to fraction form
   50,356.72/69,506.88 = 31,242.32/x
3. Step 3: Cross multiply
   50,356.72x = 69,506.88 × 31,242.32
4. Step 4: Simplify right side
   50,356.72x = 2,171,556,187.16
5. Step 5: Solve for x
   x = 2,171,556,187.16/50,356.72
6. Step 6: Final answer
   x = 43,123.46