Finding the Fourth Proportional to 139,087.08, 208,687.32 and 50,349.96

Step by Step Solution

1. Step 1: Write the proportion equation
   139,087.08 : 208,687.32 = 50,349.96 : x
2. Step 2: Convert to fraction form
   139,087.08/208,687.32 = 50,349.96/x
3. Step 3: Cross multiply
   139,087.08x = 208,687.32 × 50,349.96
4. Step 4: Simplify right side
   139,087.08x = 10,507,398,214.51
5. Step 5: Solve for x
   x = 10,507,398,214.51/139,087.08
6. Step 6: Final answer
   x = 75,545.47