Finding the Fourth Proportional to 139,284, 209,009.02 and 50,544.43

Step by Step Solution

1. Step 1: Write the proportion equation
   139,284 : 209,009.02 = 50,544.43 : x
2. Step 2: Convert to fraction form
   139,284/209,009.02 = 50,544.43/x
3. Step 3: Cross multiply
   139,284x = 209,009.02 × 50,544.43
4. Step 4: Simplify right side
   139,284x = 10,564,241,780.76
5. Step 5: Solve for x
   x = 10,564,241,780.76/139,284
6. Step 6: Final answer
   x = 75,846.77