Finding the Fourth Proportional to 102,942.48, 142,067.99 and 75,842.82

Step by Step Solution

1. Step 1: Write the proportion equation
   102,942.48 : 142,067.99 = 75,842.82 : x
2. Step 2: Convert to fraction form
   102,942.48/142,067.99 = 75,842.82/x
3. Step 3: Cross multiply
   102,942.48x = 142,067.99 × 75,842.82
4. Step 4: Simplify right side
   102,942.48x = 10,774,836,993.33
5. Step 5: Solve for x
   x = 10,774,836,993.33/102,942.48
6. Step 6: Final answer
   x = 104,668.52