Finding the Fourth Proportional to 76,019.76, 104,906.52 and 42,485.76

Step by Step Solution

1. Step 1: Write the proportion equation
   76,019.76 : 104,906.52 = 42,485.76 : x
2. Step 2: Convert to fraction form
   76,019.76/104,906.52 = 42,485.76/x
3. Step 3: Cross multiply
   76,019.76x = 104,906.52 × 42,485.76
4. Step 4: Simplify right side
   76,019.76x = 4,457,033,231.16
5. Step 5: Solve for x
   x = 4,457,033,231.16/76,019.76
6. Step 6: Final answer
   x = 58,629.93