Finding the Fourth Proportional to 86,912.09, 119,953.69 and 49,186.34

Step by Step Solution

1. Step 1: Write the proportion equation
   86,912.09 : 119,953.69 = 49,186.34 : x
2. Step 2: Convert to fraction form
   86,912.09/119,953.69 = 49,186.34/x
3. Step 3: Cross multiply
   86,912.09x = 119,953.69 × 49,186.34
4. Step 4: Simplify right side
   86,912.09x = 5,900,082,380.83
5. Step 5: Solve for x
   x = 5,900,082,380.83/86,912.09
6. Step 6: Final answer
   x = 67,885.64