Finding the Fourth Proportional to 139,446.88, 209,168.46 and 34,266.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,446.88 : 209,168.46 = 34,266.76 : x
2. Step 2: Convert to fraction form
   139,446.88/209,168.46 = 34,266.76/x
3. Step 3: Cross multiply
   139,446.88x = 209,168.46 × 34,266.76
4. Step 4: Simplify right side
   139,446.88x = 7,167,524,895.47
5. Step 5: Solve for x
   x = 7,167,524,895.47/139,446.88
6. Step 6: Final answer
   x = 51,399.68