Finding the Fourth Proportional to 76,469, 105,528.44 and 42,934.28

Step by Step Solution

1. Step 1: Write the proportion equation
   76,469 : 105,528.44 = 42,934.28 : x
2. Step 2: Convert to fraction form
   76,469/105,528.44 = 42,934.28/x
3. Step 3: Cross multiply
   76,469x = 105,528.44 × 42,934.28
4. Step 4: Simplify right side
   76,469x = 4,530,787,590.92
5. Step 5: Solve for x
   x = 4,530,787,590.92/76,469
6. Step 6: Final answer
   x = 59,249.99