Finding the Fourth Proportional to 76,078.62, 104,982.84 and 42,087.51

Step by Step Solution

1. Step 1: Write the proportion equation
   76,078.62 : 104,982.84 = 42,087.51 : x
2. Step 2: Convert to fraction form
   76,078.62/104,982.84 = 42,087.51/x
3. Step 3: Cross multiply
   76,078.62x = 104,982.84 × 42,087.51
4. Step 4: Simplify right side
   76,078.62x = 4,418,466,328.33
5. Step 5: Solve for x
   x = 4,418,466,328.33/76,078.62
6. Step 6: Final answer
   x = 58,077.64