Finding the Fourth Proportional to 76,109.82, 105,028.97 and 42,119.74

Step by Step Solution

1. Step 1: Write the proportion equation
   76,109.82 : 105,028.97 = 42,119.74 : x
2. Step 2: Convert to fraction form
   76,109.82/105,028.97 = 42,119.74/x
3. Step 3: Cross multiply
   76,109.82x = 105,028.97 × 42,119.74
4. Step 4: Simplify right side
   76,109.82x = 4,423,792,698.27
5. Step 5: Solve for x
   x = 4,423,792,698.27/76,109.82
6. Step 6: Final answer
   x = 58,123.81