Finding the Fourth Proportional to 139,059.62, 208,465.71 and 50,293.38

Step by Step Solution

1. Step 1: Write the proportion equation
   139,059.62 : 208,465.71 = 50,293.38 : x
2. Step 2: Convert to fraction form
   139,059.62/208,465.71 = 50,293.38/x
3. Step 3: Cross multiply
   139,059.62x = 208,465.71 × 50,293.38
4. Step 4: Simplify right side
   139,059.62x = 10,484,445,170.00
5. Step 5: Solve for x
   x = 10,484,445,170.00/139,059.62
6. Step 6: Final answer
   x = 75,395.33