Finding the Fourth Proportional to 139,270.91, 208,777.37 and 50,500.58

Step by Step Solution

1. Step 1: Write the proportion equation
   139,270.91 : 208,777.37 = 50,500.58 : x
2. Step 2: Convert to fraction form
   139,270.91/208,777.37 = 50,500.58/x
3. Step 3: Cross multiply
   139,270.91x = 208,777.37 × 50,500.58
4. Step 4: Simplify right side
   139,270.91x = 10,543,376,979.48
5. Step 5: Solve for x
   x = 10,543,376,979.48/139,270.91
6. Step 6: Final answer
   x = 75,704.09