Finding the Fourth Proportional to 139,683.39, 209,488.17 and 39,849.27

Step by Step Solution

1. Step 1: Write the proportion equation
   139,683.39 : 209,488.17 = 39,849.27 : x
2. Step 2: Convert to fraction form
   139,683.39/209,488.17 = 39,849.27/x
3. Step 3: Cross multiply
   139,683.39x = 209,488.17 × 39,849.27
4. Step 4: Simplify right side
   139,683.39x = 8,347,950,011.99
5. Step 5: Solve for x
   x = 8,347,950,011.99/139,683.39
6. Step 6: Final answer
   x = 59,763.37