Finding the Fourth Proportional to 139,383.58, 209,075.42 and 34,202.55

Step by Step Solution

1. Step 1: Write the proportion equation
   139,383.58 : 209,075.42 = 34,202.55 : x
2. Step 2: Convert to fraction form
   139,383.58/209,075.42 = 34,202.55/x
3. Step 3: Cross multiply
   139,383.58x = 209,075.42 × 34,202.55
4. Step 4: Simplify right side
   139,383.58x = 7,150,912,506.32
5. Step 5: Solve for x
   x = 7,150,912,506.32/139,383.58
6. Step 6: Final answer
   x = 51,303.84