Finding the Fourth Proportional to 139,441.92, 209,159.37 and 39,601.86

Step by Step Solution

1. Step 1: Write the proportion equation
   139,441.92 : 209,159.37 = 39,601.86 : x
2. Step 2: Convert to fraction form
   139,441.92/209,159.37 = 39,601.86/x
3. Step 3: Cross multiply
   139,441.92x = 209,159.37 × 39,601.86
4. Step 4: Simplify right side
   139,441.92x = 8,283,100,088.43
5. Step 5: Solve for x
   x = 8,283,100,088.43/139,441.92
6. Step 6: Final answer
   x = 59,401.79