Finding the Fourth Proportional to 76,744.27, 105,905.49 and 42,752.71

Step by Step Solution

1. Step 1: Write the proportion equation
   76,744.27 : 105,905.49 = 42,752.71 : x
2. Step 2: Convert to fraction form
   76,744.27/105,905.49 = 42,752.71/x
3. Step 3: Cross multiply
   76,744.27x = 105,905.49 × 42,752.71
4. Step 4: Simplify right side
   76,744.27x = 4,527,746,171.85
5. Step 5: Solve for x
   x = 4,527,746,171.85/76,744.27
6. Step 6: Final answer
   x = 58,997.84