Finding the Fourth Proportional to 139,710.20, 209,563.25 and 34,529.16

Step by Step Solution

1. Step 1: Write the proportion equation
   139,710.20 : 209,563.25 = 34,529.16 : x
2. Step 2: Convert to fraction form
   139,710.20/209,563.25 = 34,529.16/x
3. Step 3: Cross multiply
   139,710.20x = 209,563.25 × 34,529.16
4. Step 4: Simplify right side
   139,710.20x = 7,236,042,816.72
5. Step 5: Solve for x
   x = 7,236,042,816.72/139,710.20
6. Step 6: Final answer
   x = 51,793.23