Finding the Fourth Proportional to 76,109.54, 105,028.57 and 42,119.46

Step by Step Solution

1. Step 1: Write the proportion equation
   76,109.54 : 105,028.57 = 42,119.46 : x
2. Step 2: Convert to fraction form
   76,109.54/105,028.57 = 42,119.46/x
3. Step 3: Cross multiply
   76,109.54x = 105,028.57 × 42,119.46
4. Step 4: Simplify right side
   76,109.54x = 4,423,746,824.08
5. Step 5: Solve for x
   x = 4,423,746,824.08/76,109.54
6. Step 6: Final answer
   x = 58,123.42