Finding the Fourth Proportional to 258,003.51, 356,032.81 and 143,289.59

Step by Step Solution

1. Step 1: Write the proportion equation
   258,003.51 : 356,032.81 = 143,289.59 : x
2. Step 2: Convert to fraction form
   258,003.51/356,032.81 = 143,289.59/x
3. Step 3: Cross multiply
   258,003.51x = 356,032.81 × 143,289.59
4. Step 4: Simplify right side
   258,003.51x = 51,015,794,123.14
5. Step 5: Solve for x
   x = 51,015,794,123.14/258,003.51
6. Step 6: Final answer
   x = 197,732.95