Finding the Fourth Proportional to 50,103.42, 69,154.06 and 31,236.90

Step by Step Solution

1. Step 1: Write the proportion equation
   50,103.42 : 69,154.06 = 31,236.90 : x
2. Step 2: Convert to fraction form
   50,103.42/69,154.06 = 31,236.90/x
3. Step 3: Cross multiply
   50,103.42x = 69,154.06 × 31,236.90
4. Step 4: Simplify right side
   50,103.42x = 2,160,158,456.81
5. Step 5: Solve for x
   x = 2,160,158,456.81/50,103.42
6. Step 6: Final answer
   x = 43,113.99