Finding the Fourth Proportional to 139,822.50, 209,739 and 38,630.82

Step by Step Solution

1. Step 1: Write the proportion equation
   139,822.50 : 209,739 = 38,630.82 : x
2. Step 2: Convert to fraction form
   139,822.50/209,739 = 38,630.82/x
3. Step 3: Cross multiply
   139,822.50x = 209,739 × 38,630.82
4. Step 4: Simplify right side
   139,822.50x = 8,102,389,555.98
5. Step 5: Solve for x
   x = 8,102,389,555.98/139,822.50
6. Step 6: Final answer
   x = 57,947.68