Finding the Fourth Proportional to 139,364.29, 209,046.03 and 50,617.45

Step by Step Solution

1. Step 1: Write the proportion equation
   139,364.29 : 209,046.03 = 50,617.45 : x
2. Step 2: Convert to fraction form
   139,364.29/209,046.03 = 50,617.45/x
3. Step 3: Cross multiply
   139,364.29x = 209,046.03 × 50,617.45
4. Step 4: Simplify right side
   139,364.29x = 10,581,376,971.22
5. Step 5: Solve for x
   x = 10,581,376,971.22/139,364.29
6. Step 6: Final answer
   x = 75,926.03