Finding the Fourth Proportional to 50,443.78, 69,607.26 and 31,059.62

Step by Step Solution

1. Step 1: Write the proportion equation
   50,443.78 : 69,607.26 = 31,059.62 : x
2. Step 2: Convert to fraction form
   50,443.78/69,607.26 = 31,059.62/x
3. Step 3: Cross multiply
   50,443.78x = 69,607.26 × 31,059.62
4. Step 4: Simplify right side
   50,443.78x = 2,161,974,696.80
5. Step 5: Solve for x
   x = 2,161,974,696.80/50,443.78
6. Step 6: Final answer
   x = 42,859.10