Finding the Fourth Proportional to 139,836.59, 209,937.82 and 83,014.23

Step by Step Solution

1. Step 1: Write the proportion equation
   139,836.59 : 209,937.82 = 83,014.23 : x
2. Step 2: Convert to fraction form
   139,836.59/209,937.82 = 83,014.23/x
3. Step 3: Cross multiply
   139,836.59x = 209,937.82 × 83,014.23
4. Step 4: Simplify right side
   139,836.59x = 17,427,826,475.18
5. Step 5: Solve for x
   x = 17,427,826,475.18/139,836.59
6. Step 6: Final answer
   x = 124,629.94