Finding the Fourth Proportional to 139,662.38, 209,495.52 and 39,822.58

Step by Step Solution

1. Step 1: Write the proportion equation
   139,662.38 : 209,495.52 = 39,822.58 : x
2. Step 2: Convert to fraction form
   139,662.38/209,495.52 = 39,822.58/x
3. Step 3: Cross multiply
   139,662.38x = 209,495.52 × 39,822.58
4. Step 4: Simplify right side
   139,662.38x = 8,342,652,104.84
5. Step 5: Solve for x
   x = 8,342,652,104.84/139,662.38
6. Step 6: Final answer
   x = 59,734.43