Finding the Fourth Proportional to 50,021.75, 69,051.27 and 31,168.19

Step by Step Solution

1. Step 1: Write the proportion equation
   50,021.75 : 69,051.27 = 31,168.19 : x
2. Step 2: Convert to fraction form
   50,021.75/69,051.27 = 31,168.19/x
3. Step 3: Cross multiply
   50,021.75x = 69,051.27 × 31,168.19
4. Step 4: Simplify right side
   50,021.75x = 2,152,203,103.10
5. Step 5: Solve for x
   x = 2,152,203,103.10/50,021.75
6. Step 6: Final answer
   x = 43,025.35