Finding the Fourth Proportional to 50,884.50, 70,220.61 and 31,012.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,884.50 : 70,220.61 = 31,012.50 : x
2. Step 2: Convert to fraction form
   50,884.50/70,220.61 = 31,012.50/x
3. Step 3: Cross multiply
   50,884.50x = 70,220.61 × 31,012.50
4. Step 4: Simplify right side
   50,884.50x = 2,177,716,667.63
5. Step 5: Solve for x
   x = 2,177,716,667.63/50,884.50
6. Step 6: Final answer
   x = 42,797.25