Finding the Fourth Proportional to 139,223.34, 208,834.77 and 50,476.70

Step by Step Solution

1. Step 1: Write the proportion equation
   139,223.34 : 208,834.77 = 50,476.70 : x
2. Step 2: Convert to fraction form
   139,223.34/208,834.77 = 50,476.70/x
3. Step 3: Cross multiply
   139,223.34x = 208,834.77 × 50,476.70
4. Step 4: Simplify right side
   139,223.34x = 10,541,290,034.86
5. Step 5: Solve for x
   x = 10,541,290,034.86/139,223.34
6. Step 6: Final answer
   x = 75,714.96