Finding the Fourth Proportional to 50,102.15, 69,152.33 and 31,235.63

Step by Step Solution

1. Step 1: Write the proportion equation
   50,102.15 : 69,152.33 = 31,235.63 : x
2. Step 2: Convert to fraction form
   50,102.15/69,152.33 = 31,235.63/x
3. Step 3: Cross multiply
   50,102.15x = 69,152.33 × 31,235.63
4. Step 4: Simplify right side
   50,102.15x = 2,160,016,325.85
5. Step 5: Solve for x
   x = 2,160,016,325.85/50,102.15
6. Step 6: Final answer
   x = 43,112.25