Finding the Fourth Proportional to 139,363.32, 209,045.22 and 50,616.69

Step by Step Solution

1. Step 1: Write the proportion equation
   139,363.32 : 209,045.22 = 50,616.69 : x
2. Step 2: Convert to fraction form
   139,363.32/209,045.22 = 50,616.69/x
3. Step 3: Cross multiply
   139,363.32x = 209,045.22 × 50,616.69
4. Step 4: Simplify right side
   139,363.32x = 10,581,177,096.72
5. Step 5: Solve for x
   x = 10,581,177,096.72/139,363.32
6. Step 6: Final answer
   x = 75,925.12