Finding the Fourth Proportional to 139,933.98, 209,922.03 and 49,969.71

Step by Step Solution

1. Step 1: Write the proportion equation
   139,933.98 : 209,922.03 = 49,969.71 : x
2. Step 2: Convert to fraction form
   139,933.98/209,922.03 = 49,969.71/x
3. Step 3: Cross multiply
   139,933.98x = 209,922.03 × 49,969.71
4. Step 4: Simplify right side
   139,933.98x = 10,489,742,961.71
5. Step 5: Solve for x
   x = 10,489,742,961.71/139,933.98
6. Step 6: Final answer
   x = 74,962.09