Finding the Fourth Proportional to 139,723.02, 209,458.13 and 50,955.73

Step by Step Solution

1. Step 1: Write the proportion equation
   139,723.02 : 209,458.13 = 50,955.73 : x
2. Step 2: Convert to fraction form
   139,723.02/209,458.13 = 50,955.73/x
3. Step 3: Cross multiply
   139,723.02x = 209,458.13 × 50,955.73
4. Step 4: Simplify right side
   139,723.02x = 10,673,091,522.33
5. Step 5: Solve for x
   x = 10,673,091,522.33/139,723.02
6. Step 6: Final answer
   x = 76,387.50