Finding the Fourth Proportional to 86,539.89, 119,436 and 50,233.57

Step by Step Solution

1. Step 1: Write the proportion equation
   86,539.89 : 119,436 = 50,233.57 : x
2. Step 2: Convert to fraction form
   86,539.89/119,436 = 50,233.57/x
3. Step 3: Cross multiply
   86,539.89x = 119,436 × 50,233.57
4. Step 4: Simplify right side
   86,539.89x = 5,999,696,666.52
5. Step 5: Solve for x
   x = 5,999,696,666.52/86,539.89
6. Step 6: Final answer
   x = 69,328.68