Finding the Fourth Proportional to 139,091.52, 208,584.90 and 50,323.08

Step by Step Solution

1. Step 1: Write the proportion equation
   139,091.52 : 208,584.90 = 50,323.08 : x
2. Step 2: Convert to fraction form
   139,091.52/208,584.90 = 50,323.08/x
3. Step 3: Cross multiply
   139,091.52x = 208,584.90 × 50,323.08
4. Step 4: Simplify right side
   139,091.52x = 10,496,634,609.49
5. Step 5: Solve for x
   x = 10,496,634,609.49/139,091.52
6. Step 6: Final answer
   x = 75,465.67