Finding the Fourth Proportional to 139,673.34, 209,510.94 and 39,833.28

Step by Step Solution

1. Step 1: Write the proportion equation
   139,673.34 : 209,510.94 = 39,833.28 : x
2. Step 2: Convert to fraction form
   139,673.34/209,510.94 = 39,833.28/x
3. Step 3: Cross multiply
   139,673.34x = 209,510.94 × 39,833.28
4. Step 4: Simplify right side
   139,673.34x = 8,345,507,936.08
5. Step 5: Solve for x
   x = 8,345,507,936.08/139,673.34
6. Step 6: Final answer
   x = 59,750.19