Finding the Fourth Proportional to 76,568.94, 105,669.70 and 42,577.70

Step by Step Solution

1. Step 1: Write the proportion equation
   76,568.94 : 105,669.70 = 42,577.70 : x
2. Step 2: Convert to fraction form
   76,568.94/105,669.70 = 42,577.70/x
3. Step 3: Cross multiply
   76,568.94x = 105,669.70 × 42,577.70
4. Step 4: Simplify right side
   76,568.94x = 4,499,172,150.90
5. Step 5: Solve for x
   x = 4,499,172,150.90/76,568.94
6. Step 6: Final answer
   x = 58,759.75