Finding the Fourth Proportional to 139,463.78, 209,193.82 and 34,283.66

Step by Step Solution

1. Step 1: Write the proportion equation
   139,463.78 : 209,193.82 = 34,283.66 : x
2. Step 2: Convert to fraction form
   139,463.78/209,193.82 = 34,283.66/x
3. Step 3: Cross multiply
   139,463.78x = 209,193.82 × 34,283.66
4. Step 4: Simplify right side
   139,463.78x = 7,171,928,667.30
5. Step 5: Solve for x
   x = 7,171,928,667.30/139,463.78
6. Step 6: Final answer
   x = 51,425.03