Finding the Fourth Proportional to 76,624.89, 105,682.42 and 49,776.05

Step by Step Solution

1. Step 1: Write the proportion equation
   76,624.89 : 105,682.42 = 49,776.05 : x
2. Step 2: Convert to fraction form
   76,624.89/105,682.42 = 49,776.05/x
3. Step 3: Cross multiply
   76,624.89x = 105,682.42 × 49,776.05
4. Step 4: Simplify right side
   76,624.89x = 5,260,453,748.47
5. Step 5: Solve for x
   x = 5,260,453,748.47/76,624.89
6. Step 6: Final answer
   x = 68,652.03