Finding the Fourth Proportional to 76,022.15, 104,907.48 and 42,028.48

Step by Step Solution

1. Step 1: Write the proportion equation
   76,022.15 : 104,907.48 = 42,028.48 : x
2. Step 2: Convert to fraction form
   76,022.15/104,907.48 = 42,028.48/x
3. Step 3: Cross multiply
   76,022.15x = 104,907.48 × 42,028.48
4. Step 4: Simplify right side
   76,022.15x = 4,409,101,505.15
5. Step 5: Solve for x
   x = 4,409,101,505.15/76,022.15
6. Step 6: Final answer
   x = 57,997.59