Finding the Fourth Proportional to 139,191.24, 208,786.80 and 50,444.58

Step by Step Solution

1. Step 1: Write the proportion equation
   139,191.24 : 208,786.80 = 50,444.58 : x
2. Step 2: Convert to fraction form
   139,191.24/208,786.80 = 50,444.58/x
3. Step 3: Cross multiply
   139,191.24x = 208,786.80 × 50,444.58
4. Step 4: Simplify right side
   139,191.24x = 10,532,162,435.54
5. Step 5: Solve for x
   x = 10,532,162,435.54/139,191.24
6. Step 6: Final answer
   x = 75,666.85