Finding the Fourth Proportional to 76,619.30, 105,674.72 and 49,770.46

Step by Step Solution

1. Step 1: Write the proportion equation
   76,619.30 : 105,674.72 = 49,770.46 : x
2. Step 2: Convert to fraction form
   76,619.30/105,674.72 = 49,770.46/x
3. Step 3: Cross multiply
   76,619.30x = 105,674.72 × 49,770.46
4. Step 4: Simplify right side
   76,619.30x = 5,259,479,285.01
5. Step 5: Solve for x
   x = 5,259,479,285.01/76,619.30
6. Step 6: Final answer
   x = 68,644.31