Finding the Fourth Proportional to 76,535.48, 105,625.50 and 42,550.58

Step by Step Solution

1. Step 1: Write the proportion equation
   76,535.48 : 105,625.50 = 42,550.58 : x
2. Step 2: Convert to fraction form
   76,535.48/105,625.50 = 42,550.58/x
3. Step 3: Cross multiply
   76,535.48x = 105,625.50 × 42,550.58
4. Step 4: Simplify right side
   76,535.48x = 4,494,426,287.79
5. Step 5: Solve for x
   x = 4,494,426,287.79/76,535.48
6. Step 6: Final answer
   x = 58,723.44