Finding the Fourth Proportional to 76,141.90, 105,074.29 and 42,150.38

Step by Step Solution

1. Step 1: Write the proportion equation
   76,141.90 : 105,074.29 = 42,150.38 : x
2. Step 2: Convert to fraction form
   76,141.90/105,074.29 = 42,150.38/x
3. Step 3: Cross multiply
   76,141.90x = 105,074.29 × 42,150.38
4. Step 4: Simplify right side
   76,141.90x = 4,428,920,660.50
5. Step 5: Solve for x
   x = 4,428,920,660.50/76,141.90
6. Step 6: Final answer
   x = 58,166.67