Finding the Fourth Proportional to 76,463.59, 105,517.47 and 42,929.59

Step by Step Solution

1. Step 1: Write the proportion equation
   76,463.59 : 105,517.47 = 42,929.59 : x
2. Step 2: Convert to fraction form
   76,463.59/105,517.47 = 42,929.59/x
3. Step 3: Cross multiply
   76,463.59x = 105,517.47 × 42,929.59
4. Step 4: Simplify right side
   76,463.59x = 4,529,821,724.94
5. Step 5: Solve for x
   x = 4,529,821,724.94/76,463.59
6. Step 6: Final answer
   x = 59,241.55