Finding the Fourth Proportional to 76,469.69, 105,529.41 and 42,480.37

Step by Step Solution

1. Step 1: Write the proportion equation
   76,469.69 : 105,529.41 = 42,480.37 : x
2. Step 2: Convert to fraction form
   76,469.69/105,529.41 = 42,480.37/x
3. Step 3: Cross multiply
   76,469.69x = 105,529.41 × 42,480.37
4. Step 4: Simplify right side
   76,469.69x = 4,482,928,382.68
5. Step 5: Solve for x
   x = 4,482,928,382.68/76,469.69
6. Step 6: Final answer
   x = 58,623.60