Finding the Fourth Proportional to 258,323.16, 356,490.18 and 142,041.52

Step by Step Solution

1. Step 1: Write the proportion equation
   258,323.16 : 356,490.18 = 142,041.52 : x
2. Step 2: Convert to fraction form
   258,323.16/356,490.18 = 142,041.52/x
3. Step 3: Cross multiply
   258,323.16x = 356,490.18 × 142,041.52
4. Step 4: Simplify right side
   258,323.16x = 50,636,407,032.27
5. Step 5: Solve for x
   x = 50,636,407,032.27/258,323.16
6. Step 6: Final answer
   x = 196,019.62