Finding the Fourth Proportional to 76,229.46, 105,128.10 and 49,343.94

Step by Step Solution

1. Step 1: Write the proportion equation
   76,229.46 : 105,128.10 = 49,343.94 : x
2. Step 2: Convert to fraction form
   76,229.46/105,128.10 = 49,343.94/x
3. Step 3: Cross multiply
   76,229.46x = 105,128.10 × 49,343.94
4. Step 4: Simplify right side
   76,229.46x = 5,187,434,658.71
5. Step 5: Solve for x
   x = 5,187,434,658.71/76,229.46
6. Step 6: Final answer
   x = 68,050.26