Finding the Fourth Proportional to 67,868.70, 101,719.32 and 49,212.78

Step by Step Solution

1. Step 1: Write the proportion equation
   67,868.70 : 101,719.32 = 49,212.78 : x
2. Step 2: Convert to fraction form
   67,868.70/101,719.32 = 49,212.78/x
3. Step 3: Cross multiply
   67,868.70x = 101,719.32 × 49,212.78
4. Step 4: Simplify right side
   67,868.70x = 5,005,890,516.91
5. Step 5: Solve for x
   x = 5,005,890,516.91/67,868.70
6. Step 6: Final answer
   x = 73,758.46