Finding the Fourth Proportional to 139,093.08, 208,696.32 and 50,355.96

Step by Step Solution

1. Step 1: Write the proportion equation
   139,093.08 : 208,696.32 = 50,355.96 : x
2. Step 2: Convert to fraction form
   139,093.08/208,696.32 = 50,355.96/x
3. Step 3: Cross multiply
   139,093.08x = 208,696.32 × 50,355.96
4. Step 4: Simplify right side
   139,093.08x = 10,509,103,542.07
5. Step 5: Solve for x
   x = 10,509,103,542.07/139,093.08
6. Step 6: Final answer
   x = 75,554.47