Finding the Fourth Proportional to 139,109.46, 208,684.98 and 50,383.68

Step by Step Solution

1. Step 1: Write the proportion equation
   139,109.46 : 208,684.98 = 50,383.68 : x
2. Step 2: Convert to fraction form
   139,109.46/208,684.98 = 50,383.68/x
3. Step 3: Cross multiply
   139,109.46x = 208,684.98 × 50,383.68
4. Step 4: Simplify right side
   139,109.46x = 10,514,317,253.13
5. Step 5: Solve for x
   x = 10,514,317,253.13/139,109.46
6. Step 6: Final answer
   x = 75,583.05