Finding the Fourth Proportional to 139,059.88, 208,466.06 and 50,293.67

Step by Step Solution

1. Step 1: Write the proportion equation
   139,059.88 : 208,466.06 = 50,293.67 : x
2. Step 2: Convert to fraction form
   139,059.88/208,466.06 = 50,293.67/x
3. Step 3: Cross multiply
   139,059.88x = 208,466.06 × 50,293.67
4. Step 4: Simplify right side
   139,059.88x = 10,484,521,934.04
5. Step 5: Solve for x
   x = 10,484,521,934.04/139,059.88
6. Step 6: Final answer
   x = 75,395.74