Finding the Fourth Proportional to 139,491.26, 209,234.82 and 34,311.14

Step by Step Solution

1. Step 1: Write the proportion equation
   139,491.26 : 209,234.82 = 34,311.14 : x
2. Step 2: Convert to fraction form
   139,491.26/209,234.82 = 34,311.14/x
3. Step 3: Cross multiply
   139,491.26x = 209,234.82 × 34,311.14
4. Step 4: Simplify right side
   139,491.26x = 7,179,085,201.89
5. Step 5: Solve for x
   x = 7,179,085,201.89/139,491.26
6. Step 6: Final answer
   x = 51,466.20