Finding the Fourth Proportional to 139,050.60, 208,451.16 and 50,283.24

Step by Step Solution

1. Step 1: Write the proportion equation
   139,050.60 : 208,451.16 = 50,283.24 : x
2. Step 2: Convert to fraction form
   139,050.60/208,451.16 = 50,283.24/x
3. Step 3: Cross multiply
   139,050.60x = 208,451.16 × 50,283.24
4. Step 4: Simplify right side
   139,050.60x = 10,481,599,706.56
5. Step 5: Solve for x
   x = 10,481,599,706.56/139,050.60
6. Step 6: Final answer
   x = 75,379.75